Watch List notes:

(x) Martins Bank Limited, Isle of Man, specimen colour trial £1, 19- (c.1929), no serial numbers, no signatures, green on pale green underprint, bank arms at left, Tower of Refuge at right, reverse green, triskeles at centre, Castle Rushen at left, Albert Tower at right, overprinted SPECIMEN WATERLOW & SONS LTD in red, once on obverse and twice on reverse, five punch holes,, (Pick 18ct, Quarmby 358, Banknote Yearbook IM13act, IMPM M322ct), very slight mounting traces, otherwise about uncirculated to uncirculated and very rare.

Estimate: £700 - £900