Stunning colorized divided back postcard of the Train Concourse, Union Station, Washington, D.C. — the soaring glass-vaulted train concourse of the newly opened station (1907), showing the full length of the barrel-vaulted ceiling, pendant lights, and ticketing booths. Published by the prestigious Detroit Publishing Co. using their proprietary "Phostint" color process (card no. 2369). Copyright 1908, Detroit Publishing Co.

This card is an early mailing — Union Station had only been open two years when this was sent.

• Subject: Train Concourse interior, Union Station, Washington, D.C.
• Publisher: Detroit Publishing Co. — Phostint process — No. 2369 — Copyright 1908
• Postmark: New York & Philadelphia RPO cancel — TR90, April 19, 1909
• Stamp: 1¢ Franklin green stamp
• Addressed to: Miss Ethel Naples, Georgetown, Delaware
• Message: Handwritten on image side — "This is real large don't you think...Have been having a lovely time, I have had company, Lyra Hall + her mother came here to Washington, certainly God hate to face home, take good care of yourself. Will write."
• Condition: Good/Fair — writing on image side (common for era), age toning; spectacular interior image well-preserved

Strong crossover appeal for Union Station collectors, Detroit Publishing Co. collectors, railroad/transit enthusiasts, and Delaware postal history collectors.