Clang, Clang, Clang Goes the Trolley

Where: National Postal Museum

When: through September 10, 2017

This display was under the escalator on the lower level of the museum, what they call the "Franklin Foyer," as there's a statue of Benjamin Franklin close by.

Beginning in St. Louis in the 1890s, the Post Office used trolleys to deliver mail in cities, with workers sorting the mail on board.  The practice spread to other cities, and even during the trolley strikes at the turn of the century, post office trolleys were generally allowed to proceed on their way.  Eventually, the trolleys were replaced by trucks that could handle packages; the last service was in Baltimore in 1929.

Verdict: A glance into the past courtesy of the Postal Museum, interesting, but not what you'd call a blockbuster show.