Small die proof produced by the Bureau of Engraving and Printing for display by the Post Office Department at the Panama-Pacific Exposition of 1915, in San Francisco, California.
Date:
1915
Medium:
soft yellowish wove paper; ink (rose) / engraved
Dimensions:
Height x Width (page): 11 1/2 x 9 1/2 in. (29.21 x 24.13 cm)