Auction Series 257-264 in Zurich Day 2

1926/32: Selection of six registered envelopes, all franked with Scadta 30 c. plus registration stamp, of which three to Germany and two to USA, further Consular mail from Switzerland to Bogota (1929) franked with machine ovpt. 'S' on Scadta 30 c. as well as picture post-card franked with Scadta 1932 10 c. red brown plus 6 c. Expreso Tobon stamp of PRIMER CORREO AEREO TRANSVERSAL entre EL RIO MAGDALENA Y EL PACIFICO from "Cali 29.VI.32".
Catalogue 257: EUROPE & OVERSEAS