Historically Significant Extensive Collection of 202 Loose Phototypes Documenting the Construction of the Central Section of the Amur Railway (1910–1914), and Showing Convict Laborers Working in Harsh Conditions (Earthworks, Bridge Construction, Quarrying), Local Children from a Railway Orphanage Posing with their Teacher, Hired Workers Drinking Before Departure Home, etc.; also, with the Views of Newly Built Railway Stations (Taldan, Gonzha, Magdagachi, Tygda, Ushuman, Tu, Chernyavo, Gondatti, Ledyanaya, Alekseevsk), Early Work Equipment (Trucks, Ballast Trains, Hand-Operated Drilling Rigs, etc.), Emerging Towns & Villages (Alekseevsk, Gondattievo), and Penal Infrastructure (Barracks & Camps). Ca. 1910-1914.