Southbridge, Massachusetts: 1827. Envelope or Cover. This one-page stampless letter, measuring 16” x 9.75” unfolded and dateline “Southbridge Decr. 11. 1827,” was sent by Wolcott & Graves to John R. Matkinson of Middleton, Connecticut. It bears an uncommon circular Southbridge, Massachusetts postmark with no outer rim and a “10” rate..... More