[USA, Byrd Aviation Associates, 1930?].
A very large certificate (printed surface 420 × 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).