DaveG - are you going to let us guess what these bikes are?
Well, SteelD, what we have there is:
The first one is probably a Honda CA-95 more popularly known as a Benly 150. Vintage is ~1965 which is what my first bike was....only in the much faster high gloss black paint.
The second one is a Honda CB450 and that particular version in the pic was made only 1 year....1969. This was the successor to the famous "Black Bomber" which was buit from, if I remember correctly, 1966 - 1968. The Bomber had the long "torpedo" shaped tank much like the Hawk/SuperHawk 250/305 CB72/77 and a four speed tranny. The '69 version in the pic had a much nicer, IMO, teardrop shaped tank and a five speed tranny but retained a lot of the tinware from the Bomber. I owned one of these beasts for awhile, a red one just like in the pic, but a guy came by in 2001 with a fistfull of cash and bye-bye CB450.
This bike was sold in the US as the HellCat but I don't see the HellCat decals on the sidecover so they may have been removed or have worn off or the covers may have been repainted at some time.
For a guy like myself that goes on about the many virtues of 3,4 and 6 cylinder engines, I've owned quite a few twins, now that I think back a little.
Thanks for the pics, DaveG.