Boston Rubbers Are Made In These Mills

Front:
MILL NOI Boston Rubbers RUBBER BOSTON are made in these Mills Sca TRADE MARK. MILL NO 2

Back:
JO Post Cards of Historic Boston sent for 6 cents, Stamps or Coin, Boston Rubber Shoe Co., Boston, Mass. 23 25:00 21.38 46.3 8 88. 97's gel, Crypt 30 Sept=.07 8 50 5500 Cast fr. 80-1 PD 47' This g 235° .45