Scott O57P4 – U.S. Post Office Department Official Stamp
90¢ Black – Card Proof (1873 Issue)
This listing is for a genuine Scott O57P4 Official stamp card proof, produced for the Post Office Department as part of the 1873 Official Mail numeral series. These proofs were printed in limited numbers for archives and presentation sets and were never issued for postal use.
Details:
• Scott #: O57P4
• Issue Year: 1873
• Department: Post Office Department (Official Mail)
• Denomination: 90 Cents
• Color: Black
• Format: Card Proof (printed directly onto thick card stock)
• Gum: None as issued (NGAI)
• Condition: Strong, bold impression and excellent margins; normal hinge mark on reverse
The 90¢ is one of the most desirable denominations in the Post Office Department Official proof series and is prized by collectors of U.S. Back-of-Book material, proofs, and high-denomination Official issues.
