Anyone reconize this dirt bike frame?
I got this dirt bike frame out of the junk yard a few months back just to get the engine off of it for my atc70. I can find no real markings on it. It had a pull cord 70 engine on it. I plan on getting rid of it and would like to know what it is first. Thanks.

185s - 200 top, cam, k&n air filter, clutch pack with hd springs, ft fork extenders ( had since the early 80's)
185s - k&n air filter, clutch pack with hd springs, ft for extenders(been in the family since new was my uncles)
250 big red - winch, narrow ft tire kit (dads)(bought new)
200x - Roller, going auto-x, with white fenders.
110 late make square headlight
Blaster roller getting a spare 185s engine.