SG18. 1907.
1/2d on 5/- Salmon and green.
Brilliant fresh well centred corner plate number "1" sheet marginal mint block of six with beautiful colour and full perforations. Left hand block of four UNMOUNTED.
B.P.A. Certificate.
Very Rare And Exceptional. The Largest Known Block.
THE LARGEST BLOCK EXTANT. A SHOWPIECE!