How to identify original wheels on 65 Series IIA 88? 16 inch wheels?

[jimjim]

Hello all,

I am new to the forum. I am trying to determine whether the wheels on my 65 Series IIA are original or not? They are 15 inch wheels and I don't see any markings. I've been contemplating going to a 16 inch wheel so I can get a taller tire on there as I like the look. Any suggestions? Always learning. Thanks. Jim