786 Poland: Collection 1950 Currency re-valuation provisional opts which appear comp for all basic issues. On 28 October 1zloty became 1 new groszy & POs were empowered to h/s existing stocks "Groszy", "groszy" or "GROSZY". Diff towns used diff h/s & colours. Noted inc 1946 Airmail opt set, 1948 Centaur Air set. 1947 Culture set plus M/Sheet (Mi cat €1500 for U). 1948 America Air set (€225) plus M/Sheet (€1900 for U). All diff. Mostly VF fresh M/MUH. Mi cat €4200+ = A$5900. Scarce & seldom offered (125 plus 2 M/S) (P) $700 $1000
