1855/58 - Sardinia, 4th issue: 80c bistre-orange p

 1855/58 - Sardinia, 4th issue: 80c bistre-orange print. 58 and 20c indigo 1st plate printinf of '57, both cancelled with the blue double-circle 'TUNISI POSTE SARDE' and with the black straight-line 'Da Tunisi', the latter applied in transit at Cagliari, on cover to Pisa, May 1859. Rare. Signed A.Diena, cert. Bottacchi (Sassone 15Ab+17+pt.R2 - Euro 43,500)