Pretty nice as found carburetor for a Massey Harris type 2 Throttle governed gasoline engine. I believe it is for an around 6 HP engine. The flange bolt spacing is 2 3/4. There is 1 repair I saw a very old weld on the mounting flange. I pointed it out in the pictures with a red pointer. It is very old and there is no sign of it on the actual mounting surface. Nice an greasy and dirty as found in a barn in VT.