Lot
1850 
Italian Offices in Tientsin, 1917-18 Arms of Savoy 1c brown, inverted overprint & overprint shifted to bottom, two different varieties, o.g., F.-V.F.; with 2016 Bottacchi certificate for inverted overprint. Scott No. 5a, 5 var. Sassone No. 4a, 4b €850 ($900).