Calvaire is not well known but include beautiful items. This is a sterling key with a dangling red lucite heart. The brooch is 2 1/2" wide and 1 1/2" at the tallest. Sturdy safety clasp. Marked Calvaire and sterling. In 1925, two women, Rachel Calish and Stella Aronson, opened a business and over the years made 40 trips to Europe. They never designed or made any of the items. It is supposed that they were buying clothes and also bought the jewelry made by the fashion houses. Pittman, 3. page 42 with photo and Carroll 101, page 134, writes "Calvaire is so rare." Excellent vintage condition.