Those are 100 percent genuine, hiatt 104 handcuffs. There are a variety of markings depending on when they were made. M&C is a known marking but yes uncommon on balance.
Andy58-no login possible-other PC·03 Apr 2007·The Forum at Handcuffs.Org
…But later rivets are inserted and welded in place, so no disassembling is possible.
Sorry, i cannot login because last postings are made from another pc (not at home), now i cannot use my…