Images Dated 21st September 2021

3c American Authors Ralph Waldo Emerson die proof attached to plate proof, 14612

3c American Authors Ralph Waldo Emerson die proof attached to plate proof, 14612. 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.;This die proof with the correct color is attached to the proof of plate no. 22491, which has "wrong color" written on it.;Plate No. 22491;Denomination: 3c;Subject: Ralph Waldo Emerson;Color: bright red violet

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10c Pan-American Fast Ocean Navigation vignette plate proof, 487

10c Pan-American Fast Ocean Navigation vignette plate proof, 487. 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.1144;Denomination: 10c;Subject: Fast Ocean Navigation (Steamship "St. Paul"), Pan-American Exposition Issue;Color: yellow brown & black

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24c Washington trial color card proof, 1881. Creator: American Bank Note Company

24c Washington trial color card proof, 1881. Trial color proof prepared for the 1881 International Cotton Exposition in Atlanta.;In 1881, the American Bank Note Company printed card proofs of all previously issued stamps in five colors--black, scarlet, brown, green, and blue--for the Post Office Department to show at the International Atlanta Cotton Exposition

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