As everyone has said - it's a Columbia - but that's a Schwinn/Ashtabula fork on it. Likely sourced due to the front-end damage.

Have him put it together and ride it first. Besides the bent front end and obviously reinforced captain's seatpost/stoker stem, these were about as whippy as any ladies' single-rider Columbia Tourist. That may not be such a problem for a 3-speed to toodle around on, but it can ruin the enjoyment of a tandem.

There are better old tandems to sink time into. This isn't one of them. If weight isn't an issue, a cruise ship anchor Schwinn Twinn would be a fairly good starting point and probably easily accessible.

Granted, if he's throwing Ashtabula forks in vises without anything to keep the jaws from biting into the steel, maybe he is better off fooling with this Columbia.

-Kurt