Stamps commemorate one of the United Stateâs most culturally rich periods, the Harlem Renaissance. The sheath of 55-cent forever stamps brandish stylized portraits of key Harlem figures Nella Larsen, Alaine Locke, Arturo Alfonso Schomburg, and Anne Spencer.Spanning the 1920s, the movement brought to the fore a generation of literary, musical, and artistic minds, and this year is considered its 100th anniversary.