Regular advertisers in TELL show that they are serious about catering to the needs of collectors of Swiss material. Corinphila Auktionen AG Wiesenstrasse 8 8034 Zurich Switzerland Tel: +41 44 3899191 Fax: +41 44 3899195 http://www.corinphila.ch email: info@corinphila.ch David Feldman 175, Route de Chancy P. O. Box 81 CH-1213 Onex, Geneva, Switzerland Phone: +41 41 226 02 02 Fax: +41 41 226 02 01 http://www.davidfeldman.com email: info@davidfeldman.com Rölli-Auktionen & Philatelie AGBuzibachring 10CH-6023 Rothenburg, SwitzerlandPhone: +41 41 226 02 02http://www.roelliphila.chemail: info@roelliphila.ch Honegger Philatelie AGKürzestrasse 1P.O. BoxCH-8716 Schmerikon, SwitzerlandPhone: +41 55 286 20 00 Fax: +41 55 286 20 01https://honegger-philatelie.ch/en/email: info@honegger-philatelie.ch