Larry,
I have a lot of favorites, but the most unique is a Model 926 Airweight Polished Aluminum that I acquired from Roy Jinks' Collection, and is the only known pair of Smith & Wesson handcuffs that was engraved by DJ, Domingos Joaquim, S&W employed Master Engraver. Roy stated in his letter, that this is the only pair of S&W handcuffs that he knows of, that are fully engraved by any S&W engraver.
I received the handcuffs as Roy acquired them, in a unmarked S&W blue, 2-piece handcuff box.
I had a wood gun case that I repurposed to house my newly acquired handcuffs. I thought they deserved a special house.
Dave