A set of eight early metal Christmas tree light reflectors in punched tin (the holes do not go all the way through the metal). They're marked on the back "Patents Allowed And Pend". I found them in one of my Christmas books identified as Diamond Ray brand, circa 1927, sold in boxes of eight. They're about 3 inches diameter and come in three different flower shapes.
The reflectors are surprisingly heavy, at least in comparison to later foil reflectors. They have some minor finish loss and oxidation spots (mostly to the backs) but no rust, breaks, or bends. All have their five center prongs intact.