Treasury Series, N.F.Warren-Fisher, Northern Ireland type, third issue, 10 shillings, ND (25 July 1927), red serial number W/11 821504, green, lilac and white, Britannia at left with Union shield and trident, crowned head of George V in oval frame at right, denomination in lilac central panel, reverse denomination in green central guilloche, (EPM T33, Banknote Yearbook TR9, Pick 360), last letter for series, in PMG holder 40 Extremely Fine, scarce