Lot 60303 – 1875 “2d” on “six cents” surcharge, two Sperati glass

1875 “2d” on “six cents” surcharge Sperati forgeries, two glass clichés for the overprint to be used on the green 3 pence stamp, one cliché on grey glass with Sperati’s numbering, and one coloured dark around the printed design. This is a new discovery that has not previously been on the market.