SAN MARINO (1947) Roosevelt. Flags. Perforation error in bottom pane of 20, with an extra row of perforations across the middle of the bottom strip of 10 stamps. Scott No C51c, Yvert No PA55.
AVAILABLE AT $140
(Image b)
EL SALVADOR (1948) Roosevelt. Cordell Hull. Margin block of 4 imperforates with control punch. Also included are imperforate blocks of 4 of the frames from different stamps of the same series (5c, 8c, 12c, 2col), each with interesting markings in ink. Scott No 609, Yvert No 559. Fascinating study on this issue!
AVAILABLE AT $200
MONACO (1956) Roosevelt. Trial color proof pair. Scott No 355, Yvert No 445.
AVAILABLE AT $30