I'm gonna say that they are from the original Top Flite Tutor. The short engine mounts and that notch on the bottom sort of give it away to me. I think I got some ribs from you a couple of years ago that were from the Tutor and you shipped them to me with a Flite Streak fuselage as a stiffener for them in the wrap. I put the ribs in a kit I had that I had given away the ribs from, and the fuselage went to a friend of mine to replace the fuse on his ARF model. The estate you got all this from must have had some contact with Top Flite, or went dumpster diving behind the building when they were closing down after the Great Planes buy out years ago. I heard that they threw all manor of neat struff away when they cleaned out the building. Let me know if you want to dispose of any.
  Type at you later,
    Dan McEntee

Looks like the stuff sold at Dad's estate sale awhile back.  He had a few short kits worth of Tutor-1 fuselages Rib Sets and (I think) shaped leading & trailing edges.  There were also a few Flite Streak fuselages - like the one in your pix...