"Boy Scout training demonstration, Washington, 1912." Last of six images from this curious exercise. Harris & Ewing Collection glass negative. View full size.

New York circa 1908. "Self-supporting graduates of the Crippled Children's School, Henry Street." Bain Collection glass negative. View full size.

New York ca. 1908. "Kindergarten, East Side Free School for Crippled Children." 8x10 glass negative, George Grantham Bain Collection. View full size.

October 1912. Washington, D.C. "Baseball, Professional. Electric scoreboard." A close-up of the "baseball game reproducer" from the previous post showing results of the 1912 World Series between New York and Boston to crowds on a Washington street. Harris & Ewing Collection glass negative. View full size.

"Baseball, Professional. Crowds at scoreboard." Watching the 1912 World Series courtesy of the Washington Post on an electro-mechanical scoreboard that looks something like a big pinball game. In the years before the first radio broadcasts in the early 1920s, newspapers, linked to reporters by telephone, wire service or "wireless telegraph," provided live coverage of sporting events like prizefights and baseball games to crowds on the street, with announcers and scoreboards giving play-by-play results. Harris & Ewing Collection glass negative. View full size.

1925. Winding transformer coils at the Atwater Kent radio factory in Philadelphia. National Photo Company Collection glass negative. View full size.

Circa 1940. "Montgomery High School, Maryland." Some of these students also seen here. National Photo Company Collection film negative. View full size.