Assembling a pressure gauge at the Cherno More plant which produces such instruments.
- Categories: Economy, Business & Finance, Science & Technology
- Location: Varna, Bulgaria
- Event date: 10.01.1973
- Date published: 17.09.2010
- Author: RIA Novosti
- Source: Sputnik
- Credit: Sputnik
- Original: A73-405, 6x8 film
- Media: JPEG, 4775x3543px, 2.4Mb