Banca Nationala a Romaniei, obverse (4) and reverse (4) stage proofs for 500 Lei, 31 July 1934, consisting of obverse and reverse false colour die proofs along with three underprint proofs for the obverse and three for the reverse, ink annotations in margins, very minor mounting remnants on reverse, overall about uncirculated and very rare, perhaps unique in this colour (8 notes)
TBB B221p, Pick 36p £800-£1,200