Another question concerning the dim dead past.
I have just discovered that on 21 June 1956, the Orioles lost to the Chicago White Sox 1-0, a game in which each team managed only one hit. Chicago scored the game's only run in the first (off Connie Johnson) on an RBI double by Nellie Fox. The Orioles' only hit off Jack Harshman was a seventh-inning leadoff double by Gus Triandos, who was then retired trying to advance to third on a ground ball as the rally died. Harshman completed his one-hit shutout while Johnson got one inning of help from George Zuverink to complete a combined one-hitter.
Now I know about the one-hit-game when Sandy Koufax threw a perfect game, beating Bob Hendley's one-hitter, and I know about the game in which Fred Toney and Hippo Vaughan duelled no-hitters through nine which ended up being a no-hitter vs a two-hitter, but this Orioles game is the only one I've ever heard of in which each team got a single hit.
My attempts at googling up any other games of this sort have been frustrating, and I'm hoping that someone more adept than I can find out other instances in which each opposing team completed one-hitters.