First two from left W. Brookfield (Arc Embossed) New York - Letter C on back dome - Letter D on back dome. Third from left embossed Wm Brookfield (Arc Embossed) New York - 0 on back dome. 4th W. Brookfield (Arc embossed) 45 Cliff St. N.Y. (N0 # on back). Last two Pat. Jan 25th 1870 on rear dome Feb 22nd 1870 - MCH 20th 1877. Last one same just lighter. Embossing on first four very strong, last two weaker but very readable. I'm asking $63 shipped anywhere in lower 48.All are in great condition.