Palestine Currency Board, watermarked papers for 500 Mils and £1 as used on all notes issued between 1927 and 1944, both featuring an olive sprig design, the former small, the latter larger, glued into individual black frames of thin card, ink annotations on frame, as produced, rare (2 papers)
BNB B101-B106, Pick 6-11 for types £200-£260

These items are directly from the Portals Paper archive