From a piece that is part of the “Ten weepers from the tomb of Isabella of Bourbon”, she was the wife of Charles the Bold and died in 1465, attributed to Jan Borman II and Renier van Thienen.  A drawstring cloak clasp.  You provide your own cord or drawstring.  There will be a pair of the pieces each to be sewn on to the cloak.  Each piece is 1 1/8", 3.1 cm