AAA brand was Hondas defacto aftermarket supplier of racks to dealers. This rack is in excellent condition. Usually they are marked by model, this one just has a number "1005" so I am not sure what it will fit.
I don't think it is a CB CL350 as it doesn't have a tail light mount. , it did fit a Honda ST90 with some modifications
I have pictures of dimensions below, but here they are
total length 62 cm
top surface area 28 cm X 28 cm
Shock mounting width 23.5 cm to inside
Angled frame mount width is 15.5 cm to inside
Angled frame mount to shock mount is 21 cm
PLease make sure this will fit your bike as there is no return of parts.