Test Stamps (also called Dummy Stamps in the U.S.) are created by stamp printers and post offices to test printing and production processes and other machines. While a few have had extensive philatelic distribution, most were never intended to be known to collectors and are very scarce. New discoveries continue to be made. Denmark has made use of several types and designs of test stamps; some of these are shown in the AFA Specialized Catalog at the start of the 1933 steel-engraved period.
All items are available for viewing on approval. I have a constantly changing stock of Danish and all Scandinavian essays, proofs, reprints, specimens, and test stamps. Most such items sell before they get to the website or price lists. What are you seeking?
1994 test stamp picturing the facade of the Danish Postal Museum. Printed on the "M4" printing press, using a combination of steel engraving, offset/lithography, and photogravure (dybtryk in Danish), all in a single pass through the press. Designed by Des Asmussen and engraved by Arne Kühlmann. Sold as a fundraiser for the Danish Postal Museum; issued in a booklet containing one pane of 10 stamps, contained in an attractive letter-box shaped envelope. I have not (yet) recorded any production testing printings of this design beyond what was officially issued.