I’ve recently got the old green enameled 118 b for a great price and in very good condition: it came with two upper top covers or plates both look the same on the outside but inside they have some differences once I get home I’ll post some pictures but I was wondering if anyone knew what these differences meant or were for? Also been trying to find the top plate of a 118 black bear with the cooktop that is if it will fit the old 118?