1950, Groszy Currency Reform, extensive used collection with over 600 covers neatly housed and described in 14 albums, many overprints identified by Michel types, some better items like Mi.-Nr. Bl. A10 used (certificate Krawczyk), Bl. 11 used (certificate Falkowski), 617-619 cpl. set used on cover, many interesting and mostly domestic usages, with multiple and combination frankings. Mostly fine to very fine, an unusual specialized collection
