Apparently intended by Allen to be issued as part of v. 6, pt. 3 of the Bulletin of the United States Geological and Geographical Survey of the Territories (Hayden Survey).
The probable date of printing, presumably by the United States Government Printing Office, and other background bibliographical information have been taken from the article, "Plates for Joel Asaph Allen's unpublished monograph on the mammalian orders Cete and Sirenia and a record of the search for the manuscript," by James G. Mead and Rosemary G. Dagit, from Smithsonian contributions to palaeobiology, no. 93, p. 357-372.
Plates are signed: J.H. Blake del.; T. Sinclair & Son, lith., Philad[elphi]a.
Also available online.
SCNHRB copy 39088010317188 is accompanied by two laid-in items: 1. Notes ([1] p.) by James G. Mead, headed "Cetacean Litho's," briefly outlining the publication history of Allen's work towards a monograph on cetaceans; 2. Reprinted article, "Plates for Joel Asaph Allen's unpublished monograph on the mammalian orders Cete and Sirenia and a record of the search for the manuscript," by James G. Mead and Rosemary G. Dagit, from Smithsonian contributions to palaeobiology, no. 93, p. 357-372.
SCNHRB copy has bookplate: Smithsonian Institution Libraries. Gift of Dr. James G. Mead.
SCNHRB copy has the plates and the laid-in materials loosely inserted in an archival paperboard portfolio with green cloth spine.
