Sterling Silver Irish Setter or Spaniel Vintage Brooch

Vintage sterling silver brooch of an Irish Setter or some type of Spaniel head profile. Brooch measures 1 inch length, approx 3/4ths of an inch across widest point, and weighs 4 grams. This brooch looks like it had some stamps at one point but they have faded and are illegible but the brooch does acid test positive for sterling silver. T