3,486,495 was the original patent number filed on 23rd June 1966 by H.W.Allen. Jennings licensed the patent from him around 1967 or 68. He reviewed the allen bow in 1967 for Archery World & after that he stopped making recurves & started focusing on the compound. By the early 70's he was on his way making compounds.

I am guessing this might be an Arrowstar from the early to mid 70's. other than that I would need a picture to tell you more.