Republika Ceskoslovenska, Czechoslovakia, pair of front and back progressive proofs, 500 korun, 1929, ND (1929), (Pick 24pp1, 24pp2), in PMG holders 63 choice uncirculated, 62 NET uncirculated, selvage included (repaired, stains on 24pp1, previously mounted on 24pp2) (2 items).
Estimate: 220 - 320