Vintage Sterling Silver Scottie Scotty Dog Brooch Pin Marked

This is a vintage sterling silver brooch in the form of a Scottie dog. It measures approximately 1 1/8 inches long by 1 1/8 inches wide. It is marked STERLING on the back. I circled the mark, which is very hard to photograph. It has a pin back with a safety catch. This piece is in excellent vintage condition.