Reference book of Soviet vintage tape recorders, radio tape recorders and tape recorder-radiolas with their drawings and diagrams release 1950-1968 (total, according to the list in the content, 44 models). The corners are damaged on two pages at the bottom (photo 9). Size - 8x5.1x0.63" / 204x129x16 mm Number of pages - 238 City of publishing - Kiev Publishing house - "Scientific thought"

The black "Start" button KU-11M, used in the former USSR to starting the machine-tools, electrical machines and mechanisms. The ring around the button shows its parameters and the year of manufacture - 1972 (there is one 1971). It designed to operate at a current of 6A, alternating voltage up to 380V or constant voltage up to 220V. When the button is pressed, two of the four contacts work for closing and possibly two other contacts for opening. Size 1.6x1.6x2.1" / 40x40x53 mm Button diameter 0.94" / 24 mm

The book in a popular form outlines the basics of designing small motor ships and propellers for them, and also describes ways of amateur building small ships with stationary and outboard motors. The basic data for the selection of engines and their conversion for ship. The book is intended for a wide range of lovers of motor-boating and tourism. The book will be interesting for fans of old technology - stationary and outboard boat motors. Size 5.9x8.6x0.98" / 150x220x25 mm Number of pages 340 The year and city of publishing Leningrad - 1962 Publishing house - State Union Publishing House of the Shipbuilding Industry