When was the last time you saw one of these in a collection, much less for sale? A top color specimen for this scarce Boston CD style. Embossed around the base of the threads: PAT. OCT. 15, 1872. Contains three segmented threads. Diagonal stress fracture as seen in pic, a dome ding and a couple of minor wire ridge nibbles. This super rare piece will display just about vnm from its best side. Books at $5,000-7,500. You may never see another like it for sale, so jump on it quick at this once in a lifetime steal at $1,600, plus actual shipping and optional insurance.