Help Wanted: Medieval Russian Cavalry Shield Patterns

[vexillia]

I'm looking for inspiration for the above that I can abstract and paint on round shields of 15 mm cavalry.  I have seen the LBMS transfers but I would like some more ideas.

[Duncan Head]

Some obvious ones, which you probably know:

http://www.xenophon-mil.org/rushistory/medievalarmor/parti.htm
https://historum.com/threads/medieval-russian-armour-a-question-of-looks.10854/
https://www.pinterest.co.uk/pin/548946642083995163/

[vexillia]

Ta Duncan.