While I was thinking about it I put together some of my hard to find 2X2 radio strains from different companies I've found over the years. Just about every porcelain company offered one or several. These are all hard to find. Left to right: Findlay 500, Electric Service Supplies Co./41391 (Made by Franklin Porcelain Co.,P.P. Inc. 500 (early marking using Findlay mould) FEDCO, and my favorite G.P.Co. embossed on the top. Hope you enjoyed these pictures and info. Take care stay safe and be well to all.