(OT--Why did you quit Chicago? They sucked after you left)
Thank you for straightening me out, Richard, but I know it was a German made twin reflex camera. I don't think it was Argus, and the photo lens was a Leica lens. I just don't remember the manufacturer. Of course, this was in the 1960's and my memory isn't that good.
I never knew The lead singer for Chicargo shared my name I do remember the band and at least one of the songs "If i leave you now" I think was one of them ??
German TLR's probably a Rollieflex or Rolliecord both made by the Famous German company ..google them loads of pics about and so much info I still have a 1954 Rolliecord which i have used a lot (some of my photos in the Gallery were taken with it)
They came with either a Carl Zeiss or Schnider lens both were extremly good there were other German TLR's but none as Famous as Rollie's