Аукцион Bidspirit | Austria

Austria - 1918-19, black diagonal overprint ''Deutschösterreich'' on 10h red lilac, horizontal imperforated pair, right stamp has no overprint and additional stamp design in gray placed upside down on left stamp, full OG, LH, VF and unusual item, which believed to be a trial printing, R. Soecknick opinion, ANK #231 var, Sc. #184 var