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Odd shaped stamps on cover.

USA Love Set of 2, Heart-shaped die cut stamps on cover to Germany.
Scott 3274 from booklet and 3275 (55-cent) from sheetlet of20 stamps. Two 33-cent stamps are paired on the cover, inside the carrier frames that comprised the booklet pane with the marginal markings. Scarce as set on one, non-FDC cover. Good contemporaneous usage.
$
12.50