[Byrd Antarctic Expedition, 1928-30] BYRD, Richard E.
Rear-Admiral Richard E. Byrd ... and the Executive Committee of the Byrd Aviation Associates express to [recipient's name, Edward Dapp, in ink] their enduring appreciation in the equipping of the Byrd Antarctic Expedition. It is our privilege to attest, and we gratefully acknowledge, that without such assistance the accomplishment of the Expedition in the Antarctic would not have been possible ...
[USA, Byrd Aviation Associates, 1930?].
A very large certificate (printed surface 420 x 265 mm, mounted on stiff strawboard) with numerous decorations and 13 vignette illustrations (one with a little applied colour) on polar themes; the design is credited to Harold Butterfield. It is signed in ink by Byrd and the Chairman of the Company, James Bush.
Offered together with a companion booklet by Byrd, 'Into the Home of the Blizzard' (1928; octavo,  pages), with the recipient's name and the copy number (X-204) written in ink - but not by Byrd - on the presentation page. The cover of the booklet is a little fingermarked; it is still housed in the original mailing box with Byrd's printed label on it. On the front panel of the box a juvenile hand has executed a neat pencil drawing of the 'Bear', one of the ships used on the Byrd Antarctic Expedition II, 1933-35. Spence 225; Renard 242 (both describing the booklet only, Spence doing so imperfectly as noted by Renard; neither of them mention the box or the over-the-top certificate).