# 1002 (1951) American Chemical Society - PB, LL #24463, MNH
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US 1951
CHEMISTRY
75th Anniversary of the American Chemical Society.
ACS Emblem and items of chemistry.
Water Activated Gum
Scott 1002
Water Activated Gum
Scott 1002
Perforated 11 x 10.5
Lower Left Stamp Plate Block of 4 - #24463
Lower Left Stamp Plate Block of 4 - #24463
Mint Never Hinged