Short description: In Russian. Trigoni, Mikhail Nikolaevich. Alexeyevsky Ravelin. Moscow: Publishing House of the All-Union Union Union of Political Weavers and Settlers, book by the Centsenzdat of the Peoples of the USSR, 1929. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU8416169