The picture below shows a larger front and back view of this Old Enameled Wells Beach Maine Advertising Souvenir Jewelry Pin. The pin is not dated but it is old. The maker is unknown. It has an enameled pennant or flag over a ships helm or wheel. The pennant is marked:
WELLS BEACH
The pin measures about 1-1/8'' wide. It appears to be in excellent or better condition as pictured.