European Mail collar 16th century

Mail Collar. Formed of very small rings (app. 1/8 inch i.d.) of round cross section. Taper formed by the addition of a triangular gusset in the middle. 6 1/2 inches tall. Body of rivetted rings. Wedge rivets. Border of 3 rows of brass rings - 2 of solid punched rings and one riveted. Formerly in the collection of Leonard Heinrich - armourer to the Metropolitan Museum of Art, NY. [inv. num. M-5]