My family owns some pay washers and dryers that use odd keys and we've lost one of the keys. Mom wants me to pick or drill it but I don't even know what it's called to search for how it works. The keys are double sided and can only go in one way (can't go in upside down). I think it may be some type of wafer lock but like I said, not sure. I'd rather not have to take one apart to see how it works if I can avoid it since they're rather expensive.
Here's some pics of a key and a lock.
Key Side A
Key Side B
Lock Box Front, it says "Greenwald Ultra-Guard"
Back of lockWhen the key's turned the pin thingys move outwards and bolts slide outwards from the top and sides.
Any help with what these are called or how they work is appreciated.