German Empire, 1889 crown and eagle. 2 Pfg. black, so called “negative essay” with black Zähnungsrand, perforated L12, on the back gum probably retroactive. Certificate Zenker: “this essay was probable from a so called positive “offset cliché” manufactured, because also positive Galvanos at the Abgalvanisierung that at the Plattenherstellung originated are. The essay might from the Empire printing office comes (see Friedemann, Phil. Reports 1909, S. 352, and Theuss, S23) and is possibly an unique”! Dealer
Rauhut & Kruschel Stamp auction Auction
Minimum Bid:
2500.00 EUR (via Philasearch.com: 147th Harald Rauhut - Stamp Auction - item 9209-A147-47)
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