Also, a combination of chalcography and offset is often used in stamp production
Absolutely. They do a lot of that. The 2 Euro coins series is an example of that type of printing.
Spain 10 July 2009
10th anniversary of the common European currency (Euro)
Chalcography and offset lithography
Phosphorescent matt chalk-surfaced and gummed paper
Perforated 13 3/4
size: 28.8 x 40.9 mm (stamp), 115.2 x 105 mm (miniature sheet)
number printed: 340,000 miniature sheets in printer's sheets of 50
face value: € 1
engraved at RCM - FNMT
The sheet commemorates the tenth anniversary of the introduction of the common European currency, on 1 January 1999. The stamp shows the common European site of a Spanish 2 Euro commemorative coin with a common European theme circulated in member countries in 2009. The miniature sheet depicts the printed area of the obverse of a 20 Euro banknote of the design brought into circulation in 2002. The numeral '20' has been replaced by the Euro symbol. Coins and banknotes were not circulated until 1 January 2002, three years after the introduction of the common European currency.