Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

My Ex moved back from Wichita Kansas last night and a friend of hers up in Kansas give her (or rather me) this Mamod Engine & Accessory.  The pin was busted off, so I drilled out a hole and plugged in spare drill bit I busted off.  I used red loctite to keep it in place (that stuff works).  I don't thing this engine is really for repairing, it is all pressed together with lots of rivets.

Anyone know the model?  I know he got it for his 5th birthday in 1973.

I think this engine is a Mamod Minor 2 (MM2)?  Though mine has a screw plug on the front and this one in the video doesn't have one.