World Banknotes

Bulgarian National Bank, a set of watermarked papers for the 1929 issue, comprising 200 (2), 250, 500 and 1000 Levs, one of the 200 Levs a loose paper, others individually glued into blue card frames, ink annotations on paper, as produced, rare (5 papers)
BNB B156-B159, Pick 50-53 £260-£320

These items are directly from the Portals Paper archive