I think your dignity is safe !! Close ups would help but the metalwork is similar to that era !! They appear to be heavier than the styles of the 60`s and 70`s when some repro`s were made !! I would not replace any of the parts,,didn`t see any rust and no matter if it is,, originality is key to the age !! You will not get rich but they should bring around $20 each and possibly more for the copper ones !!