C-3PO's silver leg — found an old toy still in box, now I don't know what reality I'm in

My brother had the original Kenner C-3PO action figure, still in the box. Found it at our mom's house in Burbank last year when we were cleaning out the garage. I always remembered 3PO as all gold. Everybody does. That's the whole point of the character right, golden droid. Opened the box. Silver l……