BULGARIA

BULGARIA / БЪЛГАРИЯ.

Vasil Kolarov (now: Golyan Beglik) Dam.
First stamp in a set of 5, issued on 16.05.1952.
Face value: 4 Bulgarian stotinki.
Printing: Photogravure.
Print: 15,000,000 copies.
Size: 30.5 x 26.5 mm.

Catalogs
- Michel No. 813.
- Scott No. 770.
- StampWorld No. 803.
- Stanley Gibbons No. 857.
- Yvert et Tellier No. 710.

Golyam Beglik is a 4,126 km² (1,593 sq mi) reservoir on the Kriva River located in the Pazardzhik Province, in the western Rhodope Mountains. Construction of the dam began in 1956 and was officially inaugurated on November 18, 1951 under the name of the communist leader Vasil Kolarov, a name that remained until June 11, 1999. It was originally designed as an irrigation dam, but later used for hydroelectric plants. The levee is 46.50 m (152.56 ft) high and 191 m (627 ft) long. The top of the wall is 1,528.5 m (5,015 ft) above sea level.

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Thanks to Dragan Buškulić for his contribution (https://worldofstamp2.wordpress.com/).