Made of thin sheet aluminum,backs are cast alum. Stars are illuminated from the light inside. Some paint loss and paint drips. Looks like they could have had a half round disc inserted from the back at bottom,easy to make or would work fine without.   See tape measure for dimensions.  Assume ALL vintage lighting from me will need to be rewired weather you see a cord or not. Floor lamps, chandeliers and some table lamps will come disassembled and in two packages, sometimes by different carriers.  I pack well and usually ship out quickly,check my feedback and other listings for more great items.