http://theminiaturespage.com/boards/msg.mv?id=192954 1801 ca. 500 lbs. : https://www.smdailyjournal.com/news/local/russian-cannon-finds-a-home-in-pacifica/article_217b3f54-5c28-11ea-ab22-d7f643296942.html
Russian Horse Artillery:
http://theminiaturespage.com/boards/msg.mv?id=202612
Thanks very nice - very useful illustrations - especially about loading the gun.