I made a video talking about Russian greatcoats during the Crimean War.
Some of the sources I used in the video are:
https://www.authentic-costumes.com/product-page/russian-overcoat-1854-77
https://en.topwar.ru/198456-uniforma-krymskoj-vojny.html
https://www.matakishi.net/crimean-war-2021.html
https://talesfromghq.blogspot.com/2024/04/the-battle-of-arzov.html
In short, I am trying to make sense of the pictorial and written sources available to me, and finding it all a bit of a mess.