My dad got his in 1968. I would say if you're doing a mid 60s to late 60s theme...they're correct. If you wanted to go earlier, it'd probably be chrome reverse dish with a spider cap; or painted steelies with chrome caps.
Apparently (Im 31 tomorrow) what we think of as normal bits for our hot rods, were still high dollar in the 60s and most guys had mixed/matched rim combos (steelies on the back and cragars on the front for example) Im sure the O.G. Hotrodders will chime in here