Last picture of embossings: Edison Made In U.S.A. Open type with oil hole Square, Edison Made In U.S.A. Open Type with oil hole round, No Name small hump back type 4" Cobalt Blue. Lower row: Schoenmehl Battery Co. Mfg. By The Waterbury Battery Co. Waterbury Conn. Large round. Also has a porcelain extension on the back that goes down into the jar. Lastly Edison Made In U.S.A. Large round slightly different type embossing. To give anyone an idea of the typical use and style of storage battery, C.B. Schoenmehl had patent US663938 Dec. 18, 1900 for their type of storage battery. There were many patents from the early 1800's and beyond. Too numerous to list.