Description Description of sea warning signs on the Caspian Sea. - St. Petersburg: Ed. Ch. Hydrogr. , 1906. - [4], V, 21 s .. - Ex: with the rukop. litter. . 1. Territory (collection). Source of electronic copy: PB Location of original: GUDiO MO RF Publisher Изд. Гл. Гидрогр. упр.