1856 - Sardinia 4th Issue 20c milky cobalt, 1st Pl

 1856 - Sardinia 4th Issue 20c milky cobalt, 1st Plate, '55 printing, well-margined, cancelled 'TANINGE 22 AVR 56' and also with the boxed 'R.L.' handstamp (raggio limitrofo), on letter to Chêne (Switzerland, Canton of Geneva). Unrecorded combination of cancellations and rare reduced rate prepaid to destination, provided for the first rate of correspondence exchanged between Sardinian and Swiss offices located less than 45 km from the Sardinian-Swiss border. Manzoni certificate (Sassone 15ca)