(Samuel MAU2), seven values to 20c. marginal with plate number, unmounted mint with gum a little toned in places. A rare group" /> Specimen 1921-26 1c., 2c. brown, 4c. sage-green and carmine, 6c. bright mauve, 8c., 10c. grey, 12c. red and 20c. blue, 1921-34 5c. and 25c. to 10r., each overprinted<I> "Specimen"</I> (Samuel MAU2), seven values to 20c. marginal with plate number, unmounted mint with gum a little toned in places. A rare group | Christie's