Mikeintightpants sent in the picture here and this information:

GOTCHA !!!

Yep it’s a strange name for a pair of handcuffs, but GOTCHA it is. Those of you who know your cuffs will probably be aware that these cuffs never went into commercial production – it’s only a few pre-production pairs that were issued – nobody seems to know exactly how many were manufactured but it certainly wasn’t many.

Thanks, Mikeintightpants, for showing off these cuffs!