I think Bjorn's on the right track. (I've never seen one of Johnson's bows.) Somebody from that California group of bowyers-which could also include Smithwick. Can't see the tips up close but the recurves remind me of an Eicholtz Saturn. That's one of Fred Anderson's favorite old bows and he's likely the best guy to identify this bow. He knew and worked with all those guys and I'll bet he can put a name to it!
If it's an Eicholtz, it's likely from the late '50s. My later Eicholtz bows are radical static recurves.
None of those bows seem to bring high prices. Even Drake and Eicholz bows are a relative bargain now.