Two-way rotary switch

The post-war two-position counterpart to this pre-war rotary switch from Студент-Электрик.

I got it from one of our elderly acquaintances, who in the late 80s replaced it with a new one during the redecoration of my father's summer house built in 1948. Unlike the Студент-Электрик's switch , where the spring-loaded handle fastening nut was lost during the dismantling process (in the center of my main photo), my copy, under similar circumstances, has lost the fastening terminal of one of the phases. Otherwise, the differences are minor and affect only certain design elements.

On the front side of the cover, in addition to the usual marks "on", "off." and "6 250", there is a logo: capital letters "ЗТЛ" inside a circle. But this switch definitely cannot be a product of the "Turbine Blades Plant", since this enterprise was founded only in 1964 and the first years of its existence had a different name.

The wooden backing and wires were attached at the same time, in the late 80s, by my now deceased maternal grandfather, Georgy Grigorievich.