Chartered Bank, Hong Kong, a group of initial engravers workings on transparent...

Chartered Bank, Hong Kong, a group of initial engravers workings on transparent acetate showing the outlines of plate designs for the obverse and reverse of the $10, 1979-1982 Issue, obverse; first showing the outline of text, second showing part of the outline of the mythical carp, reverse; as issued, each of these is unique and they are remarkable survivors, as most were simply treated as printers waste (3 items)
TBB B372, Pick 77 £120-£180

Footnote
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.