Lot 40071 – 1919 2K violet ultramarine (so-called dark blue),

1919 2K violet ultramarine (so-called dark blue), wide (broad) format with INVERTED OVERPRINT (overprint type I), převrácený přetisk & široký format, tied to fragment as already formerly used example (as all other known examples of this variety) by PRAHA 27.12.19 cds, very rare item and totally undervalued in phil. literature, signed Gilbert, Leseticky, Suchanek, cert Pytlicek, apparently ex colln.Mrnak