A shop I worked at in the 70s had a similar jack. It was air powered, had a pair of arms one could position under the axle or suspension, and lift vertically almost 4 feet. It had 4 caster wheels, was well balanced, not difficult to move around at all. Haven't seen one since, with todays cars, could hardly use it anyhow. looks like a major car restorer, circa late 50s? The foreground car might be a Stanley Steamer, and the coupe in the rear is possibly an Electric. Very interesting photo. I like how he is keeping the kids from being directly under the car too.
