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Sextant, Bubble, Prototype, National Bureau of Standards for USN, Model 2, S/N#?

Manufacturer:
United States Bureau of Standards, Bureau of Aeronautics  Search this
Dimensions:
3-D: 17.8cm (7 in.)
Type:
INSTRUMENTS-Navigational
Country of Origin:
United States of America
Credit Line:
Transferred from the U.S. Navy
Inventory Number:
A19630068000
Restrictions & Rights:
Usage conditions apply
See more items in:
National Air and Space Museum Collection
Location:
Steven F. Udvar-Hazy Center in Chantilly, VA
Hangar:
Boeing Aviation Hangar
Data Source:
National Air and Space Museum
GUID:
http://n2t.net/ark:/65665/nv995b59b3a-6bb9-430a-8f58-4c3ab8349e3f
EDAN-URL:
edanmdm:nasm_A19630068000
Online Media:

Sextant, Bubble, Prototype, National Bureau of Standards for USN, Model 2, S/N#5

Manufacturer:
United States Bureau of Standards, Bureau of Aeronautics  Search this
Materials:
Ferrous Alloy
Copper Alloy
Non-Magnetic White Metal
Glass
Possible Radium Paint
Wood
Organic Fiber Thread
Paint
Possible Liquid
Rubber
Dimensions:
3-D (Overall): 20.3 × 15.6 × 12.7cm (8 in. × 6 1/8 in. × 5 in.)
Type:
INSTRUMENTS-Navigational
Country of Origin:
United States of America
Credit Line:
Transferred from the U.S. Navy
Inventory Number:
A19630069000
Restrictions & Rights:
Usage conditions apply
See more items in:
National Air and Space Museum Collection
Data Source:
National Air and Space Museum
GUID:
http://n2t.net/ark:/65665/nv9ccdac8c6-bd51-4105-b69f-89b56513d353
EDAN-URL:
edanmdm:nasm_A19630069000
Online Media:

German / Biddle wavemeter

Maker:
James G. Biddle  Search this
Object Name:
Wave Meter
wavemeter
Other Terms:
Wave Meter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313532
Catalog number:
313532
Accession number:
188571
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-1633-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702969

Radio frequency volt-ammeter

Physical Description:
wood (case material)
Measurements:
overall: 4 in x 5 3/4 in x 9 1/2 in; 10.16 cm x 14.605 cm x 24.13 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Date made:
1912
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313556
Catalog number:
313556
Accession number:
188571
Collector/donor number:
R-1967A
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-3c3f-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_710210

Hartmann & Braun 1-amp. hot-wire ammeter

Maker:
Hartmann & Braun  Search this
Measurements:
overall: 3 3/4 in x 6 in; 9.525 cm x 15.24 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313542
Catalog number:
313542
Accession number:
188571
Collector/donor number:
BS10885
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-19a3-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702629

Firth type L wavemeter with thermo galvanometer

Maker:
Firth, John  Search this
Physical Description:
wood (?? material)
Object Name:
Wave Meter
wavemeter
Other Terms:
Wave Meter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313577
Catalog number:
313577
Accession number:
188571
Collector/donor number:
BS 625591C
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-35d5-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702967

Hartmann & Braun 10-amp. hot-strip ammeter

Maker:
James G. Biddle  Search this
Hartmann & Braun  Search this
Measurements:
overall: 3 3/4 in x 6 1/2 in; 9.525 cm x 16.51 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313541
Catalog number:
313541
Accession number:
188571
Collector/donor number:
BS10887
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-19a4-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702630

French ammeter

Measurements:
overall: 6 1/8 in x 6 1/8 in x 1 7/8 in; 15.5575 cm x 15.5575 cm x 4.7625 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313548
Catalog number:
313548
Accession number:
188571
Collector/donor number:
R-2216
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-1e6b-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702684

Weston 5-ampere radio frequency ammeter

Maker:
Weston Electrical Instrument Co.  Search this
Measurements:
overall: 10 in x 4 in; 25.4 cm x 10.16 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313553
Catalog number:
313553
Accession number:
188571
Collector/donor number:
BS 15427
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-1f47-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702703
Online Media:

Robert W. Paul galvanometer

Associated Name:
National Bureau of Standards  Search this
Measurements:
overall: 4 3/4 in x 5 in x 4 1/4 in; 12.065 cm x 12.7 cm x 10.795 cm
Object Name:
Galvanometer
Other Terms:
Galvanometer; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313546
Catalog number:
313546
Accession number:
188571
Collector/donor number:
BS 16401B
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746ab-648f-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_709636
Online Media:

Hartmann & Braun 60-ampere hot-strip ammeter

Maker:
Hartmann & Braun  Search this
Measurements:
overall: 7 in x 10 in; 17.78 cm x 25.4 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313557
Catalog number:
313557
Accession number:
188571
Collector/donor number:
BS 10889
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-3c3d-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_710208

Wireless Specialty Company stroboscope

Maker:
Wireless Specialty Apparatus Co.  Search this
Measurements:
overall: 12 1/4 in x 9 1/2 in x 7 1/2 in; 31.115 cm x 24.13 cm x 19.05 cm
Object Name:
Strobascope
Other Terms:
Strobascope; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313559
Catalog number:
313559
Accession number:
188571
Collector/donor number:
R-1956A
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-40a7-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_710288

General Radio hot-wire galvanometer

Associated Name:
National Bureau of Standards  Search this
Maker:
General Radio Company  Search this
Measurements:
overall: 2 in x 3 1/4 in; 5.08 cm x 8.255 cm
Object Name:
Galvanometer
Other Terms:
Galvanometer; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313539
Catalog number:
313539
Accession number:
188571
Collector/donor number:
13
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746ab-89ae-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702759

Bureau of Standards standard ammeter

Measurements:
overall: 6 1/4 in x 5 1/2 in; 15.875 cm x 13.97 cm
Object Name:
Standard Ampmeter
ammeter
Other Terms:
Standard Ampmeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313570
Catalog number:
313570
Accession number:
188571
Collector/donor number:
23
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-3155-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_704040

Roller-Smith 1-amp aerial ammeter

Maker:
Roller-Smith Co.  Search this
Physical Description:
wood (stand material)
Measurements:
overall: 2 1/4 in x 4 in; x 5.715 cm x 10.16 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313544
Catalog number:
313544
Accession number:
188571
Collector/donor number:
BS 17472
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-1a2d-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702821

Hartmann & Braun hot wire wattmeter

Maker:
Hartmann & Braun  Search this
Measurements:
overall: 2 1/2 in x 6 1/4 in; 6.35 cm x 15.875 cm
Object Name:
Wattmeter
Other Terms:
Wattmeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313555
Catalog number:
313555
Accession number:
188571
Collector/donor number:
16
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746ab-8740-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_702824
Online Media:

10-ampere hot-strip ammeter

Measurements:
overall: 3 3/4 in x 5 1/2 in; 9.525 cm x 13.97 cm
Object Name:
Ammeter
Other Terms:
Ammeter; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313537
Catalog number:
313537
Accession number:
188571
Collector/donor number:
BS 18906B
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-3e3d-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_710239

De Forest type UV6 "Ultra-Audion" radio receiver

Associated user:
unknown  Search this
Associated institution:
Bureau of Standards  Search this
Maker:
De Forest Radio Telephone & Telegraph Co.  Search this
Measurements:
overall: 7 in x 9 1/4 in x 7 3/4 in; 17.78 cm x 23.495 cm x 19.685 cm
Object Name:
Detector
radio receiver
Other Terms:
Detector; Radio
Date made:
ca 1914
c 1914
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313516
Catalog number:
313516
Accession number:
188571
Collector/donor number:
BS 14809
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-393a-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_705859

General Radio galvanometer

Associated Name:
National Bureau of Standards  Search this
Maker:
General Radio Company  Search this
Measurements:
overall: 5 in x 4 1/4 in x 4 3/4 in; 12.7 cm x 10.795 cm x 12.065 cm
Object Name:
Galvanometer
Other Terms:
Galvanometer; Measuring Devices
Credit Line:
from the United States Bureau of Standards, Dept. of Commerce
ID Number:
EM.313545
Catalog number:
313545
Accession number:
188571
Collector/donor number:
BS 37665B
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-342b-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_709634

Lepadella cryphaea

Microhabitat Description:
in moss, Amblystegium irriguum growing on submerged rocks  Search this
Prep Count:
1
Preparation:
Slide
Place:
small stream near United States Bureau of Standards, District of Columbia, United States
Common name:
Rotifers
Published Name:
Lepadella cryphaea Harring, 1916
USNM Number:
16828
See more items in:
Invertebrate Zoology
Rotifera
Data Source:
NMNH - Invertebrate Zoology Dept.
GUID:
http://n2t.net/ark:/65665/3c5224792-72d9-491c-b291-5c85308ea6c4
EDAN-URL:
edanmdm:nmnhinvertebratezoology_10470954

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