ANS in pencil, signed “E,” one page, 5 x 8, January 11, 1924. A note to "Payne," apparently concerning the usage of automotive batteries, in full: "I think you better abandon the closed crate on your battery in your Ford and put it in open crate like Hanley had = The heat is probably too high by continuous charging at 10 amp." In fine condition. Edison himself had developed an alkaline storage battery with a wide variety of applications: it was used for mining lamps, train lighting and signaling, submarines, electric vehicles, and so forth.
Terms and abbreviations used in our descriptions.