They are ATS 283513 wheels. I believe an option on 140/160's around 1969/70.
They are 15 x 5 1/2 +32 . They are an alloy centre (magnesium perhaps) riveted to a chrome steel outer.
They currently have tyres fitted to them that hold air (not in great shape).. I could always pull these off if they aren't wanted.
BTW.. i can have them delivered pretty much anywhere cheap... if not free..