White Ace 1972-1973 Air Mail Plate Blocks Stamp Supplement United States APL-7

Brand: White Ace
Series: Air Mail Plate Blocks
Country: United States
Year: 1972-1973
Pages: 38-40
Product#: APL-7
Supplement#:
Stock#: 1949
Notes: For the air mail postage stamps issued during the years 1972-73, in plate blocks of 4