Skip to main content Smithsonian Institution

Search Results

Collections Search Center
3 documents - page 1 of 1

Duplex Pendulum Seismograph

Maker:
California Electrical Works  Search this
Physical Description:
wood (overall material)
paper (label on top of the instrument material)
brass (overall material)
Measurements:
overall: 27 1/8 in x 13 1/2 in x 11 3/4 in; 68.8975 cm x 34.29 cm x 29.845 cm
Object Name:
seismograph
Place made:
United States: California, San Francisco
Used:
United States: Ohio, Cleveland
Date made:
late 1880s
Credit Line:
Case Institute of Technology
ID Number:
PH.323669
Catalog number:
323669
Accession number:
251332
See more items in:
Medicine and Science: Physical Sciences
Seismographs
Science & Mathematics
Measuring & Mapping
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-1a63-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_996607

California Electrical glass insulator

Maker:
California Electrical Works  Search this
Physical Description:
glass (overall material)
green (overall color)
Measurements:
overall: 4 1/4 in x 2 1/2 in; 10.795 cm x 6.35 cm
Object Name:
Insulator
Other Terms:
Insulator; Insulation
Credit Line:
from Western Union Corporation
ID Number:
EM.331548
Accession number:
294351
Catalog number:
331548
Collector/donor number:
22-40
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-5b2a-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_712450
Online Media:

California Electric Works insulator

Maker:
California Electrical Works  Search this
Physical Description:
glass (overall material)
Measurements:
overall: 4 1/8 in x 2.5 cm; 10.4775 cm x in
Object Name:
Insulator
Other Terms:
Insulator; Insulation
Credit Line:
from Western Union Corporation
ID Number:
EM.331583
Accession number:
294351
Catalog number:
331583
Collector/donor number:
22-15
See more items in:
Work and Industry: Electricity
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a5-3453-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_713679
Online Media:

Modify Your Search







or


Narrow By