Banca Nationala a Romaniei, watermarked paper as used on all 500 Lei of 1924 to 1938, the 1000 Lei of 1910 to 1931 and the 5000 Lei of 1931, glued into individual black frames of thin card, ink annotations on frames and paper, as produced, a significant tear across the lower half of the 1000 Lei, very rare (3 papers)
BNB B218-B220, B223, Pick 28, 32, 23, 34, 35 for types £240-£300

These items are directly from the Portals Paper archive