Recently finished a few more frames of insulator and electric related matchbook covers. It takes a lot of searching and luck finding these pieces of history but it's worth it. My other frames are listed from years ago. Just type in my name in the search box to see my other postings. From top to bottom Left to right. Leviton Mfg. Co., St. Louis Steel Castings Co. (St. Louis Malleable Co.),Carlisle, Pa. Frog and Switch Co. The place is closed and a couple towns away. Wish we could get a tour in there. H.K. Porter Co. Inc., A-B Chance Co. Second row: Cook Electric Co. Burndy Electric Connections, Wadsworth Fuse Pannels, Pennsylvania Transformer Co., Wadsworth Fuse Pannels. Bottom Row: James A. Kearney Corp., Cornell-Dubilier Electric Corp. capasitors and Valentine Clark Corp. Finished cedar telephone poles. Love the graphics on these covers. Wish I had a better camera to capture them.