Dorchester High School Postcards Dorchester High School No. 2591 Postcard. Caption on front: Dorchester High School. Postally unused. On verso: No. 6964. The Metropolitan News Co., Boston, Mass. Manufacturers of Souvenir Postal Cards. Printed in Germany. Facebook Twitter Print Friendly Skills Codman Square, Dorchester, High School Posted on December 9, 2022 ← Pierce Square Elephant House →