CD 134 1871-1893 Patent SDP Violet Blue and Amber

By Joe Maurath, Jr.; posted March 7, 2003

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Each of the violet-blue CD 134 1871/1893 Patent and the amber examples shown are identically embossed although they were produced in different molds. The amber one was on loan to me and it has a small chip on its reverse side. The violet blue one is in excellent condition and both insulators have just about all of their drip points intact. From what I know there is at least one other example known in each of the shown colors.