Retrieved by feed from Hodinkee.com:
In 1920, the trench watches used during World War I were sold off by J. Selinger in Washington DC (820 F Street N.W.) at break-neck prices. For example, a $25 grade watch would be sold for $5, some as low as $4. The window here is indeed J. Selinger of Washington with a fully stocked window of timepieces available for purchase. You have to remember, in 1920, the wristwatch was still in its infancy, and pocket watches were very common. But you know what? Watches could always bring a crowd.
These images are available in high-def and for purchase at Shorpy.
(hat tip to Bob O.)