catcher's mitt

Mary Hudson batted ninth on the Warriors' lineup ... The Chief left his umpire's position behind the pitcher and came forward anxiously. He told Mary Hudson to rest the end of her bat on her right shoulder. "I am," she said. He told her not to choke the bat too tightly. "I'm not," she said. He told her to keep her eye right on the ball. "I will," she said. "Get outa the way." She swung mightily at the first ball pitched to her and hit it over the left fielder's head. It was good for an ordinary double, but Mary Hudson got to third on it - standing up.

When my astonishment had worn off, and then my awe, and then my delight, I looked over at the Chief. He didn't so much seem to be standing behind the pitcher as floating over him. He was a completely happy man. Over on third base, Mary Hudson waved to me. I waved back. I couldn't have stopped myself, even if I'd wanted to. Her stickwork aside, she happened to be a girl who knew how to wave to somebody from third base.
J.D. Salinger, 'The Laughing Man'

Patented 1925 catcher's mitt