Here is a reproduction PA sticker a friend sent me 6yrs ago.Are they availiable,yes.Would I use it no.In Pa,antique requires no inspection so it could be used with no problem,anything else requires PA inspection plus emissions inspection/check depending on county so it would not be legal.PA stickers are issued to the inspection stations in numerical format and all must be accounted for.If a station loses a sticker,reissues or has one stolen that number must be submitted to the PA Dept Trans.Other states may vary but that is the way it has always been here.Also,the PA sticker has an overlay on the front that must be removed to afix the sticker to the inside glass.