STAMPS
1898
Netherlands, Coronation, portrait only
1899
Netherlands, Definitives, portrait only
1903
Iran, Definitives
NON-PHILATELIC ENGRAVINGS:
1917
Netherlands, Grietje Seel on 100g, 200g, 300g and 1000g banknotes P39/42 (engraved in 1901)
You will find Rudolf Stang's biography HERE.
1898
1899
Netherlands, Definitives, portrait only
1903
Iran, Definitives
NON-PHILATELIC ENGRAVINGS:
1917
Netherlands, Grietje Seel on 100g, 200g, 300g and 1000g banknotes P39/42 (engraved in 1901)
You will find Rudolf Stang's biography HERE.