Washington Post:

In the grainy footage, a giant of a man, wearing a dark baseball uniform, walks past the camera holding two bats. Another man, in a white uniform, walks just behind him. And then the two take turns whacking pitches from the left side of the plate.

From the first moment Tom Shieber saw the clip, at an exhibit on pre-World War II life at the Japanese American National Museum in Los Angeles, he knew those were no ordinary ballplayers. They were Babe Ruth and Lou Gehrig.

And:

the video was part of a curation of items from a family-owned general store in Oregon. The video, captured by Reverend Sensho Sasaki, a Buddhist priest and amateur filmmaker, was thought to show part of a local pickup game.

What an incredible find. Ruth and Gehrig, arguably, belong on the Mount Rushmore of baseball, on the short list of all time baseball greats. Amazing to see video of them together, in the height of their prime.