This is a AAA brand rack which was the defacto aftermarket luggage rack that Honda dealers sold to their customers. Straight, Exellent, Bright plating on the top, with a minimum of rust at some of the welds and also underneath. Actually it may be new old stock with shelf wear because I cannot find any evidence of bolt or washer markings on any of the mounting points. It is Clearly marked Honda CB CL175 K4 K5.
It May also fit K6 and K7 models, but check with me on dimensions before ordering for K6 K7