II RP, Altimeter, Zwolinski Zakopane. Altimeter manufactured by the German company Otto Boche of Berlin and distributed by the Zwolinski company of Zakopane. White metal case. Diameter 7.5 cm. instrument in leather case. On the inside the ownership stamp "Zwolinski Zakopane". Zwolinski family ran a store in Zakopane from 1923 to 1950. They were also publishers of postcards and maps.
We include a certificate of authenticity with every item purchased at our auction for 4,000 PLN and above.