Norm of Silk Roads said that the main distinction between turkish and russian krug is that the latter is made with leather straps. So I wasn't suprised on that.
So these were worn on finer mail? Ok, then... I've heard about this, but I've never thought that "large" means THIS large. Only a bet: the mamluks confronted mostly sabres is CQ, did they? Do you have any info about the ring sizes?
Btw, Ham: from where do you have so much information on these subjects? Are there any kind of book on these? Even now, I have a veeeery long wish list on books, but there's never enough.
Oh, and thanks for the input!