Dave:

I see a J-3 fuselage minus the braces inside the windshield. I see Citabria vertical fin and rudder, the horizontal stab looks like an Aeronca Champ refugee, or maybe it's Citabria also. The cantilever wing is from who knows what - I don't know of any fabric light planes without wing struts.

And the engine cowling. If some one put a cheek cowl on a J-3 to "Slick it up," it would match the fuselage.

So what did the seller say about it?

Bill.