When blue is blue

Scientific treatise and study on the composition of the paint on the Protectorate 5h blue linden leaf stamp. Study of the dependence of the amount of paint on the color shade of postage stamps.

03. 05. 2025

Complete description

Personalised adjusted printing sheet (PersUTL):
Ice-hockey club HC Slovan Bratislava plays in KHL

Date of Issue: 07. 06. 2013

Printing sheet form: UTL

Stamps in printing sheet: 8

Use translation by Google Translate (no guarantee).

Personalised miniature sheet with the postage stamp Zodiac prepared on the occasion of the entry of the ice-hockey club HC Slovan Bratislava into the Continental Hockey League (KHL).

Adjusted printing sheet:

Personalizovaný upravený tlačový list (PersUTL) so známkou Zvieratník k účasti hokejového klubu HC Slovan Bratislava v Kontinentálnej hokejovej lige KHL je klasifikovaný ako oficiálny - objednávka a grafický návrh: Slovenská pošta/POFIS.

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