Public auction #41 on

1918. Probni otisak vrednosti od 20 para u paru, nezupcane u promenjenim bojama iz forme probnog štamparskog tabacica, naknadno mašinski poništene koncentricnim šestougaonicima u maniru francuske državne štamparije (Atellier de Timres Postes) radi sprecavanja kasnije upotrebe. Poznato je svega nekoliko ovakvih probnih otisaka i na ovaj nacin poništenih, za svaku naprednu zbirku.
1918 Printing proof 20 p denomination, in pair, imperforate in CHANGED colors from the form of proof printing sheet, machine cancellation in shape of concentric hexagons in manner of French Atellier de Timbres Postes in order to stop further use. Only several such printing proofs known and cancelled in this way, for every supreme collection.