£600 - £700
1923 Air Mail 1d Mercury Stamp Essay produced for the London Air Post Exhibition, sheet of 120 printed by De La Rue, in brown on silk, control L-23. A remarkable and unique sheet, just three sheets all in differing colours and with differing plate numbers believed to have been printed on silk.
Fees apply to the hammer price:
Free Registration
26.4% inc VAT*
Flat Fee Registration
22.80% inc VAT*
