53. Russian armament from the fourteenth to the mid-seventeenth century. Caps made of iron "Historical description of clothing and arms of the Russian troops from ancient times", compiled on the highest command More
345 - 346. Bombardier Caps, from 1757 to 1761. "Historical description of clothing and arms of the Russian troops from ancient times", compiled on the highest command: 1841-1862) Viskovatov V.V. 345 - 346. More
Sergei Dmitrievich von Hahn Public domain image - related to Russian history, free to use, no copyright restrictions image - Picryl description