Hong Kong & Shanghai Banking Corporation, a pair of initial engravers workings on transparent acetate showing the outlines of plate designs for the onverse and reverse of the $20, 1985-9 Issue, design as issued, with engravers annotations, each of these is unique and they are remarkable survivors, as most were simply treated as printers waste (2 items)
TBB B673, Pick 192 for type £100-£150

These items are photographed on a white background to show them properly, but are etchings on transparent acetate (plastic). No returns will be accepted on grounds of failing to read or understand the description.