1841 Penny Red (EA/HL) Plate 10 SUPERB Mint Block of 48

1841 1d Red brown Pl.10. A superb unused o.g. four margin block of forty eight lettered EA-HL lightly mounted on four stamps only. (EA/GA bend/crease) Formed from four complete horizontal rows showing sheet margin and inscription at left and right. A magnificent and very rare exhibition showpiece of the highest quality. Catalogued 150k as 12 blocks of four. Ex Stanley Gibbons investment portfolio.