Handwritten in black ink and on an 8" high x 10" wide sheet of white paper with blue lines on three sides. Following is the letter reading in part: "Balto July 16 1868/Dr. NM. V. Marmion/Dear Sir:/Yours of the/14th is at hand. We send you today by/mail samples of our fine and medium/marbles and oaks suitable for libraries/and dining rooms with prices marked." Marks - embossed trade mark top, left corner with the initial "P and P."