Rare Hungarian handcuffs

 

This is a very rare swing through handcuff from Hungary. With one original, unique key, they sold for $407 after 7 bids. 

The seller has a lot of info in the description. It's noted that these use a star wheel mechanism instead of the ratchet, and are only single locking. The key is numbered, same as the cuffs. There are integral swivels and a single 1" O ring connecting the cuffs.