3 U.S. Postage Stamp advertising posters that would have hung in the Post Office. They are all framed under plexiglass. They include The Centennial of Recorded Sound 1877 - 1977 in VG condition, King of Ragtime Scott Joplin in VG condition, and You Ain't Heard Nothin' Yet 50th Anniversary of Talking Pictures in VG condition originally folded. The frames measure 25" wide, 37" tall each. From the Allen Koenigsberg collection.