3853 1919 Registered Airmail cover use of old 10c Envelope franked Tell 13c, 1918 Pro Juventute 10c & 15c, plus "wings" opt 50c, tied by "Bern 7 Kornhaus 30 IV 19" cds, with reg & express labels & 2 b/s; plus 1924 Romanshorn Air Show flight cover franked Helvetia 40c & Air 65c tied by violet "Romanshorn-Zurich 9 VI 1924" cds, with reg & air labels, plus Air Show label with flying boat plane. The air opt stamp alone SG 303 cat £160, the others another £90, so total £250 as loose stamps alone! (2 covers) (P) $150 $250
