A set of nine 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 backs "Patents Allowed And Pending". I found them in one of my Christmas books identified as Diamond Ray brand, circa 1927, sold in boxes of eight.

The reflectors are about 3 inches diameter and come in four different flower and star shapes. They're surprisingly heavy, at least in comparison to later foil reflectors. All are still bright and shiny with a few shallow scuff marks from storage but no oxidation or rust. The center prongs are intact and flattened with no damage.