Front: Ee Ji BIOTN 1.001 00 Tt ZZ E MAUSE Back: MK2 ALFRED MAINZER, ING. 39-33 29TH ST., LONG ISLAND CITY 1, N. Y. No. 4670 Copyright by Max Künzli, Zürich 6/35 Imprimé en Suisse - Printed in Switzerland 12-