Sash weights (heavy pcs of metal) (City east: Park-Monroe Ave)

Hoping the folks I think of as “the metal guys” will see this. We just had the ancient windows in our attic replaced. The old ones were the kind that worked with “sash weights” - very heavy hunks of metal (iron?) on ropes. Have about 20 of them. A small but heavy trove of scrap metal. Planning to put them at the curb with a sign this coming Weds, but thought I’d try to get the word out beforehand to try to get ‘em to- well- a metal guy! :). (Dartmouth St between Monroe and Harvard)