Auction 333-341 Western Australia & Great Britain - Day 3

1870 (Oct): Bantam ½ d. pl. 10, lettered EN-EX / ON-OX, an unused block of 121 stamps (11 x 11), of excellent colour and centering, imperforate at right, each stamp overprinted SPECIMEN (Type 9) in black. Fresh and very fine, superb large part or unmounted og. A truly astonishing block, the largest known Gi 4u = £ 27'225.
Note: An adjoining block of 10, CT/DX was in the Chartwell Collection (2011).
Provenance: Dr. Douglas Latto, Aug 1985.