Grand Bison

Date
1929
Description

Pure-line engraving on laid Monval papier verdâtre (light-blue / green tinted paper). 
Reference: Tonneau-Ryckelynck & Plumart 179. 
Proof impression, aside from the edition of 100.  Our impression, unlike all others, has margins, and was not used on the cover of the album.  Extremely scarce, possibly unique as such. 

Size
5 5/8 x 8 1/4 inches
Price
$500