1863, De La Rue 40 c. rose, an unused block of four of vibrant fresh colour, marginal from right of sheet with imprint POSTALI at right, excellent centering for the issue, fine unmounted original gum. A magnificent multiple in the foremost quality and probably the finest known. Signed A. Diena. Cert. G. Colla (2016) (Sassone L20 = € 140.000,-)
