Black Sea, south coast, Bosporus, 1927

Izdanie Glavnogo Gidrograficheskago Upravlenie Morskogo Ministerstva ; Gravirovano v 1940 g. ; mal. korrekt. I-1923 g. ; bolsh. korrekt. XII-1926 ; pechatano v 1927 g; Издание Главного Гидрографическаго Управление Морского Министерства ; Гравировано в 1940 г. ; мал. коррет. И-1923 ; болш. коррект. XII-1926 ; печатано в 1927 г..;Relief shown by hachures and spot heights. Depths shown by soundings and isolines.; Includes illustrations, tide table, and inset map of the Gulf of Zonguldak.; Greenwich meridian.; Selective lights shown with yellow and red annotations.; Southern Black Sea coast, from Bosporus (labeled Strait of Constantinople on map) to Cape Kerempe.; Inset map: "Zalib Zunguldaik. Masshtab 1/11760... Glubiny v sazheni︠a︡kh 6-ti fut. mery... S angliĭskoĭ karty no. 2238-1898 g." [Gulf of Zonguldak. Scale 1/11760... Depth measured in sazhens (fathoms) as 6 feet... From English maps 2238-1898].; "Masstab 1/394800 ili v 5.4 milʹ (...) v 1 di︠u︡ĭme po parralleli 41°40'." [Scale 1/394800 or 5.4 miles (...) in 1 inch at 41°40' parallel].; "Glubiny v sazheni︠a︡kh 6-ti futovoĭ mery na sredni︠u︡i︠u︡ vodu." [Depth measured in fathoms (sazhens) are 6 feet on average water].; "Vysoty gor v futakh." [Mountain heights in feet].; "Kartmasterskie Gidrografii Morveda, Naberezhnai︠a︡ Polshali︠a︡ 2, Leningradskiĭ Gublit. no. 33715, Tirazh 300 zkz."; [Chart no.] 8Grayscale;1:394,80