used 1843 Double Geneva 5+5c. black on yellow-green, fresh with very large margin at foot, good margins at sides, slightly cut-into at top, centrally cancelled by red rosette, tiny crease at lower left corner and has violet h.s. on reverse that just shows through to face. A most presentable example of this famous world rarity. Rellstab Certificate. Signed Moser and Richter. Z.3, S.F.50,000. Photo in colour