I have happened to come across an interesting site by Victor Manta presenting, among other stamps on art, those issued in ex-Czechoslovakia printed from flat plates on diestamp print presses: http://www.artonstamps.org/art-on-stamps-1.htm
and then: Local Masters Foreign Masters P. Ginz & Columbia
Florian asked me to post this video which shows the production of the 2016 Czechia - Liechtenstein joint issue. The stamps portray Gerrit Dou's painting Young Woman on a Balcony printing done on the Waite & Saville die-stamp press.
To explain further as to what is involved in printing these multicolour engraved painting stamps, Florian states that : the sheet below shows 5 single prints from each of the dies and the resulting print in five colours in register demonstrate how the final result is achieved.....
....The document (print run: 2,000) is sometimes referred to as Aachen proofs. It was published by the Czech Post to mark the Government Postage Stamp Printers' Association award for excellence in the category "Best Intaglio Stamp" issued in 2014-2015 for the stamp featuring the painting "Head of a Girl" by Hans von Aachen.
Engravers working on these dies for the Waite & Saville presses had to interpret a painting on a stamp using just 5 or 6 colours.
Here is what Adrian mentions about Milos Ondracek the engraver of the Hans von Aachen stamp.
"A large part of Ondracek's work consists of stamps depicting artwork, issued in the annual "Art" series of Czechoslovakia, and now the Czech Republic. These often form quite a challenge. Not only does a work of art need to be reduced in size enormously, without losing its characteristics, but there's the added problem of only having available a limited number of colours. The challenge is therefore to use several layers of engravings so that the five or six hues end up being a dazzling spectrum of colours."
The latest Art on Stamps issue showing a painting entitled "The Victor" by Jaroslava Pešicová was honoured with a document featuring a set of five proofs from each of the dies plus all the five in register, all of them executed by engraver Václav Fajt (b. 1952).
The document is similar to the Aachen proofs shown in the previous post , executed by engraver Milos Ondracek (b. 1936). The subscription price was the same: 380Kc but the print run was 1500, not 2000 as before. Both Ondracek (81 now) and Fajt (65) are Czech senior engravers who are still active in stamp engraving but with diminishing opportunities as offset printing takes over in stamp production.
PTC Praha a.s. stamp printer has announced in their recent newsletter that their large Fr. Heim & Co. flat-bed machine, now reconditioned, has been put again into operation printing a giant souvenir sheet measuring 124 by 203 mm for Slovakia. The S/S contains one 2.60 € stamp measuring 44.4 x 54.4 mm. The black proof of the sheet's engraving by František Horniak is also available (see https://www.pofis.sk/en/catalog/pro...es-in-levoca ).
It is a shame that Czech Post insists on using double-sided sticky tape to adhere the six lovely colour separations to their backing sheet (at least on the Aachen item - the only one I currently own). Over time these "proofs" will surely suffer as the adhesive breaks down and the front of the items discolours where the tape is. I have carefully (VERY carefully) removed the adhesive from the reverse of my copies to prevent this from happening. Not ideal as it ruins the backing sheet, but at least it will go some way towards preserving the engravings. GLENN
Your observation about not all the lines being completely filled with ink is very interesting but I have to point out to you that some of them in all colours (such as the two in blue below the chin of the cherub - unlike the background in blue - in the latter blow-up) in fact are, so the background is left like that on purpose.
Just study II - Taille-douce a plat in DE LA GRAVURE AU TIMBRE (5) of May 27, 1915 on http://blog-impressions-timbrees.bl...y-date=false on Papy24's blog in French interpreting retired printer Miroslav Vondřich's words on the multicoloured flat plate printing of stamps in Prague.