German Empire ESSAY 20 Pfennig Numerals in Oval in ultramarine on ungummed paper for the CROWN and EAGLE definitive issue, with protective surround in stamp colour, so-called thumbprint. Essay produced on an ungummed sheet ca. 100x120 mm. Here reduced to stamp size, very well preserved, minimal imperfections, unsigned, photo opinion Manfred Wiegand BPP (2026) "minimal brownish toning and small hole at lower right"