Button of electric doorbell for apartments or gates. A new button from a warehouse, in excellent working condition, never used. Diameter 1.7" / 44 mm

Old Soviet steel keys.

Catalog of Soviet lenses (in Russian), manufactured in the 1950s - 1960s. Their technical characteristics are given, optical schemes are shown, general information is given about the purpose, types of outer frames, types of apertures and light filters. Also shown are examples of photos with these lenses. The cover and some pages of the book are glued with tape (see photo 8) Photo 7 shows a sample translation from Russian to English of the technical specifications, which are indicated next to each lens. Complete list of lenses from this catalog: Industar-50 Industar-26M Industar-61 Industar-29 Jupiter-8 Jupiter-3 Helios-44 Jupiter-12 Mir-1 Orion-15 Russar (MR-2) Mir-3 Jupiter 9 Helios-40 Jupiter 11 Tair-11 Tair-3FS (photogun) Tair-33 MTO-500 MTO-1000 Rubin-1 The book was published in Kiev in 1969 by the publishing house "Reklama" (Advertising). Author - Maisenberg I.S. Number of pages 63 Edition 25000 pcs. Size 5.8x7.8" / 148x199 mm