Business stationery (cover of a registered lettar, addressed to Dr. Stanisław Jabłonka) used by The Film Research and Development Center [Filmowy Ośrodek Badawczo-Rozwojowy] "TECHFILM" in Warsaw (Warszawa, Poland). The Center was established in 1950 and, after many reorganisations, dealt with the research and production of equipment, technological studies and expertise for the needs of cinematography.