From today in 1939:

“Dimes. Millions of ‘em. Dimes in bags, envelopes, and packages are pouring into the White House these days as part of the president’s March of Dimes, a feature of the President’s Birthday Ball Fund to fight infantile paralisis. Here, Barbara Councilor of the White House mail room, is pouring out and dipping her hands in dimes.”

(Photo by Harris & Ewing via Library of Congress)