Dorchester High School, Boston, Mass. Postcards Dorchester High School, Boston, Mass. No. 220 Postcard. Caption on front: Dorchester High School, Boston, Mass. Postally unused. On verso: Made in Germany. A.C. Bosselman & Co., New York. Facebook Twitter Print Friendly Skills Dorchester High School Posted on November 12, 2022 ← Dorchester High School Dorchester High School, Dorchester, Mass. →