Lot
960 o
Switzerland, 1938, Pro Patria, 10c+10c Tell Chapel, blocks of 4, one on normal paper & one on grilled paper, cancelled by socked-on-the-nose double circle postmarks, Very Fine. SBK Nos. 1y, 1z SFr 480 ($490). Scott Nos. B90, B90a Estimate $100 - 150.