Very neat icy blue color; the Patent Dec 19 1871 is so weak it doesn't appear but it's there below the WEMFGCO side. Nice string of bubbles going up the side of the pin hole. Very flat base {MLOD} and base flaw adds two characteristics..One is like a fault line -- kind of like one tectonic plate going under the other. The other looks like a chip but upon close inspection I don't believe it is--perhaps a shallow bubble burst on the day it was made. It's rather neat in appearance. $30 + $7 postage. Thanks