# Thumbnail Catalog Number Description Denomination Color Variety Date Issued Gum Type Actions
2511 2179a Virgina Apgar 20c orange brown 1/1/1997
2512 2180 Chester Carlson 21c blue violet Single Stamp 10/21/1988 Water Activated
2513 2180a Chester Floyd Carlson 21c blue violet tagging omitted 10/21/1988
2514 2181 Mary Cassatt 23c purple Single Stamp       Block Tagging, Dull Gum 11/4/1988 Water Activated
2515 2181a Mary Cassatt 23c purple Overall tagging, dull gum 11/4/1988
2516 2182 Jack London 25c blue Single Stamp        Tagged 1/11/1986 Water Activated
2517 2182a Jack London 25c blue BP of 10, Tagged 1/11/1986 Water Activated
2518 2183 Sitting Bull 28c myrtle green Large Block Tagging 9/14/1989 Water Activated
2519 2184 Earl Warren 29c blue Mottled Tagging, Prephosphored Paper 3/9/1992 Water Activated
2520 2185 Thomas Jefferson 29c indigo Solid Tagging, Prephosphored Paper 4/13/1993 Water Activated