Certified plate proofs are the last printed proof of the plate before printing the stamps at the Bureau of Engraving and Printing. These plate proofs are each unique, with the approval signatures and date. For postal scholars these plates provide important production information in the plate margin inscriptions, including guidelines, plate numbers, and initials of the siderographer, or person who created the plate from a transfer roll.
Plate No. 606
Subject: Trans-Mississippi Exposition, Western Cattle in Storm
When Stamps magazine did a poll in the mid-thirties, readers selected this issue as the most beautiful U.S. stamp. It is part of the Trans-Mississippi series, issued to commemorate the settlement of the Middle West. The vignette is taken from a painting by Scottish artist James MacWhorter and actually depicts a scene in northern Scotland.
Museum ID: 0.242263.585