Tiffany-style Turtleback Lamp Base

Description:

Tiffany-style Turtleback Lamp Base, mid to late 20th century, four turtleback tiles set in a patinated bronze frame with four shade holders and four feet, electrified, oil reservoir replaced by an insert with three Leviton sockets, additional socket internal to the base, unmarked, ht. to top of shade holder 12 1/2 in.
Estimate $400-600

Missing bottom plate with Tiffany stamp mark.