1910-40s original light bulb cord for painted scene heads

Here's an original 1910-40s light bulb cord unit for bass drums that have front painted scenes or motifs. There were heater elements that would warm your bass drum calf heads and if you had a painted scene or motif this unit would allow you to place a small "night light" size bulb into your bass drum behind the calf head to light the painted scene. Old fashion cloth electrical wire with the small bulb socket on one end and a male light bulb unit on the other. You would need to disconnect one end of this and run it thru the grommet hole and then re-wire that end. Very fine condition, tested and it works, from a smoke free environment.