"exposition 10 minutes on photographic paper"
"©ame®@ obs©u®@ ZLATNO OKO was constructed by Manufa©tu®@ obs©u®@ ©®oati@ of a tin (124mm diameter and 120mm high) for takes on photographic paper 115x305 mm. The diameter of the pinhole is 139 microns, and croscut of a pinhole has conic form."