Interesting comments overall, and Nando, you are truly an 'artiste' with words...crescendo, very well put!
I think with collectors, most collections are in varying degree 'in flux', and often pieces have to be 'let go' either to upgrade or as interests digress into other fields. Most individuals must make these choices as typically, most of us do not have the means to acquire items as comprehensively as we would like to. Many become dealers in degree as well, in order to subsidize thier collecting.
With this understanding I think we all agree that buying and selling items is most often a necessary element of collecting.Personally I admire sellers who responsibly try to learn all they can about an item before placing it for sale, and present the description as accurately and detailed as possible.
Returning to the subject at hand, the identification of this chainmail, I will say again that the comments thus far seem to well address the condition of the mail, and I look forward to hearing more on the construction, as Gene has well noted.
It seems I have studied arms and armour most of my life, and the more I think I know, the more I realize how much I dont know

I love to learn and being here in these discussions is by far the greatest joy ever, where the learning never stops.
Perhaps some close up shots will give better look at the construction Dmitry.
Nando, you got it, on the prairie as always it seems, headed west toward El Paso, on the 'low road' (US 10) long drive to Tuscon, then in for 'wagon repairs' then northern Arizona near Flagstaff. The 'Boss' says I gotta thin out the library some here in the bookmobile or we're gonna need new shocks
All the best,
Jim