Just picked this up. Never had a B1 before so I'm pretty happy. It runs great and mows nice! Someone changed the thing from a magneto to battery coil ignition, but it works fine. I need to get some pics under the hood too, but I'd like you guys to tell me what is original and what isn't, I'm not super familiar with AC stuff. I know the muffler isn't original and the gear shift knob isn't original, but not sure where to find AC parts. It does have the badge on the front but the grill is pretty rough. It does have 1 original grease cap on the front, but what are the chances of finding one to match the other side? It's really dirty so I'm gonna spray it with degreaser and pressure wash it. My dad went with me to get it and he obviously was having fun mowing with it lol I think it is missing the serial number tag for the tractor, but I'm not 100% sure where it's located. If it's behind the seat like other AC's I've seen it's gone.
