Hi,
I have attached kalkan from polish army museum in Warsaw. It's marked as battle shield (less decorated then parade one)
http://www.muzeumwp.pl/emwpaedia/kalkan-bojowy.php
I think we have more parade kalkans as they were expensive and not used in fight. When I say parade, it should have precious stones / umbo made with gold, ...
http://www.muzeumwp.pl/emwpaedia/kal...y-pancerny.php
Still all colorful versions with steel parts are made for 'normal use'