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10 DM Test Note

正面描述	Plain white ground with all design elements printed in red. The issuer name SIEMENS NIXDORF appears in the upper left corner outside a central rectangular border. Within the border, the denomination 10 DM is printed in large bold letterpress numerals at centre, with TESTGELD below it and the note dimensions 65 X 130 above; the denomination 10 DM is repeated in each corner of the border, with the lower two impressions inverted. The order number Bestellnr. U60051-J runs vertically along the right margin outside the border.
正面铭文	SIEMENS NIXDORF - 10 DM - TESTGELD - 65 X 130 - Bestellnr. U60051-J
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备注	Siemens Nixdorf produced test notes like this one for ATM calibration and banknote processing equipment — not for any central bank, not as a currency proposal, but purely as a mechanical reference object. The dimensions deliberately approximated Deutsche Mark specifications so that sorting and dispensing machinery could be tested under realistic conditions without using genuine currency. These pieces were never intended to survive in collectors' hands. That any circulate in the numismatic market at all is largely a product of equipment disposal and workshop clearances after Siemens Nixdorf's 1990 merger and subsequent restructuring through the 1990s.