to leave small marks on the bolt face. I bought an A3 decades ago that was advertised as unfired. Asked how he knew , he replied " the bbl band is still in the white , the sargents would park them when issued.", right , I'm still looking for the " Parking kit , 1 , back pocket unit". Anyway , I bought it. Looked new for sure , but some parts were parked , some blue , and a couple in the white. After I fire it the first time , I noticed little marks from the case base and primers on the what was perfect bolt face. I do believe it was proofed only when I got it. Chris
PS , I think the in the white parts are examples of "clear park" . The cosmolineor age have given them a "blotchy" look over time.