RAYON FIRST DAY USAGE 1850 Folded letter from Bern to Langnau franked by dark-blue Rayon I cancelled by boxed PD, three good margins (touched at top), red BERN 1 OCT 1850 cds alongside, scarce first day usage Expertise: Cert. Rellstab Estimate: € 2’000 – € 3’000 (Image)