51th Auction - Day 2

Thailand: 1923 Two registered airmail covers to Berne, Switzerland, one from Nagor Rajasima franked
1923 Two registered airmail covers to Berne, Switzerland, one from Nagor Rajasima franked three 1920 25s. tied by special Korat Air datestamp, Reg. label on front, special Ubol Air d/s, Cochinchina transit datestamps and Bern arrival dater on the reverse, and another cover from Ubon franked by 8 adhesives tied by special UBOL Air d/s, and with special Bangkok Air d/s, Bangkok transit datestamps and Bern arrival c.d.s. A fine pair used on different flights.