This is a lovely vintage sterling silver locket. It is rectangular and is ornamented with an ornate monogram of RRL. It still retains the celluloid covers over the interior where you would put pictures of loved ones. It is marked Sterling Marathon. The Marathon company, located in Attleboro, Massachusetts, made both lockets and vanity items such as compacts. This locket dates to the early part of the 20th Century.
It measures 1 3/4 inches by 1 1/4 inches and it is in very good condition with only some light surface scratches.