This reminiscence pertains to the period of close co-operation between its author and Wojciech Kalinowski at the Institute of Town Planning Architecture, expressed in, i. a. a joint report on work conducted by the Institute in 1949-1956 ["Biuletyn IUA", no. 1: 1958]. The duties of the author in his capacity as Director of the Institute and Wojciech Kalinowski as its Scientific Secretary created a domain for personal contact, shared views and friendship despite the different main trends of their scientific interests.