US 1941-Date-Used Stamps
Scott# 2544 PRIORITY MAIL-SPACE SHUTTLE CHALLENGER, USED PLATE# SINGLE
US 1941-Date- Mint Stamps
Scott# 2544 SPACE SHUTTLE CHALLENGER, PRIORITY MAIL MNH PLATE BLOCK
US 1941-Date- Mint Stamps
Scott# 2544 SPACE SHUTTLE CHALLENGER, PRIORITY MNH PLATE# SINGLE
US 1941-Date- Mint Stamps
Scott# 2544A “EXPRESS MAIL-SPACE SHUTTLE ENDEAVOR” PLATE # SINGLE, MNH
US 1941-Date- Mint Stamps
Scott# 2544A “EXPRESS MAIL-SPACE SHUTTLE ENDEAVOR” SINGLE, MNH
US 1941-Date-Used Stamps
Scott# 2544A “EXPRESS MAIL-SPACE SHUTTLE ENDEAVOR” USED SINGLE, MNH
4. US Plate Blocks & Multiples
US 1941-Date- Mint Stamps
Scott# 2544B “PRIORITY MAIL CHALLENGER” (1996) MNH PLATE # SINGLE
US 1941-Date- Mint Stamps
Scott# 2544B “PRIORITY MAIL-SPACE SHUTTLE CHALLENGER” SINGLE, MNH
4. US Plate Blocks & Multiples
Scott# 2544B SPACE SHUTTLE CHALLENGER, PRIORITY MAIL MNH PLATE BLOCK (4)
6. US Booklets & Panes