we're looking at late '60s, poss into early '70s here
.... Wing PII style bows
.... but with metal riser! E.g. Spartan II, Carroll's Lewis, Winder, Gentleman Jim
.... What years did these bows come to market?
Here's a British made bow,
possibly made as early as '67 (although yet to be confirmed)
- dating primarily based on the bowyers patent application for the limb attachment method
- bowyers signature & patent appl on the lower limb (& yes it could be like Bear's '53 patent on his bows).