# Thumbnail Catalog Number Description Denomination Color Variety Date Issued Gum Type Actions
51 OX36 Liberty within an oval and phrase "Officially Sealed" - background white none Dark Gray Single Stamp 1/1/1948 Water Activated
52 OX37 Liberty within an oval and phrase "Officially Sealed" - background white none Dark Gray Single Stamp 1/1/1948 Water Activated
53 OX38 Liberty within an oval and phrase "Officially Sealed" - background white none Dark Gray Single Stamp 1/1/1948 Water Activated
54 OX39 Liberty within an oval and phrase "Officially Sealed" - background white - ... more
Liberty within an oval and phrase "Officially Sealed" - background white - Design width 37.5mm
none Dark Gray Single Stamp 1/1/1950 Water Activated
55 OX40 Liberty within an oval and phrase "Officially Sealed" - background white - ... more
Liberty within an oval and phrase "Officially Sealed" - background white - Design width 38.5mm
none Dark Gray Single Stamp 1/1/1969 Water Activated
56 OX41 USPS Logo Centered in Officially Sealed Bar none Black Single Stamp 1/1/1972 Water Activated
57 OX42 USPS Logo Centered in Officially Sealed Bar none Black Single Stamp 1/1/1972 Water Activated
58 OX43 USPS Logo Centered in Officially Sealed Bar none Black Single Stamp 1/1/1973 Water Activated
59 OX44 USPS Logo Centered in Officially Sealed Bar none Black Single Stamp 1/1/1976 Water Activated
60 OX45 USPS Logo Centered in Officially Sealed Bar none Black Single Stamp 1/1/1979 Water Activated