USA OIL Thematic
Covers and stamps / USA
USA: OIL Thematic 1883-88 Two postal advertising envelopes (2c red/2c green respectively) on exhibition page, both illustrating oil drums, splendid pair
USA: OIL Thematic 1883-88 Two postal advertising envelopes (2c red/2c green respectively) on exhibition page, both illustrating oil drums, splendid pair