US POSTAGE #C74 STAMP PLATE NUMBER BLOCK FOR SALE: Click on the image text to return to where you were on the Space and Flight Collectibles Page.
 

Scott #C74 Plate Block 50th Anniversary Of Air Mail

Scott #C74 Plate Block 50th Anniversary Of Air Mail

#C74 50th Anniversary Of Air Mail Plate Block (front and back) - $1 (Block B)