1858, 2 gr. carmin in block of 4 with large margins, used with 2 somewhat week strikes of svolazzo of Spezzano Albanese, the lower stamps show part of marginal watermark "B.T.", very fine and scarce, certificates A. Diena (1961) and Enzo Diena (1985) (Sassone 7e) (Image 1) (Image 2) (Image 3) (Image)