New to bingos, just bought a pile of them from Lloyd at Coinop Warehouse...mostly 70s 6-card games, not collectible titles, but at least a few of them appear to have been put away in working order and are pretty clean.
Many have keys, but a few don't, like Miss Universe and Nashville. Should I just drill out the locks like a pinball? I don't want to destroy the locks unless there is no way to match up keys.
What do you guys do about the multitude of locks and keys? Re-key them all the same?
Glad to be joining the bingo club...

Hey, thanks, you guys all helped me figure out how to do the least damage. This is what I decided is the "correct" procedure to get into a locked bingo:
1) Check for keys taped/screwed to outside of head or cabinet
2) Try other similar keys
3) If front door is locked, drill it first and look for other keys inside on hook or loose
4) If no keys for head siderails or back door found, drill back door locks first
5) Pry caged nuts off of one or both head siderail locks and remove locks undamaged

I still have to repeat this procedure 13 more times to get through the pile of mostly 6-cards I got from Lloyd at Coinopwarehouse...the first two I opened are now both working about 90-95%, Nashville (backglass key was inside coin door) and Wall Street...they all look complete and have balls and good backglasses and playfield glass. No real "gems", but all look like they're from a bunch that was put away in working condition.
Got plenty to work on for a few years...