 | | Factory | KOMZ (Kazan)| lens | -| the type made from | 1973 to 1975| example of number | 742793| minimum found number | | maximum found number | | Produced pieces | Unknown | | Rarity | R2 | | Distinctive features of type | | Inscription "Ecran-4", handle,and case was changed | | Отличительные черты типа | | Надпись "Екран-4", ручка и футляр изменены | | | | | | | |
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