Please help us identify these handcuffs

In our wanderings have found an old pair of handcuffs. We would like to establish the period in which these were made. We have inserted a couple of photos to help with the estimate.

These are clearly blacksmithed, as opposed to cast, due to the irregularities you can see in the marks circling the bottom end of each lock (second photo), and the shape of the top of the key. The cuffs plus key weigh 525 grams.

The cuffs operate by turning the key on a threaded post which is inside the lock's top; this raises a wedge off the 5 notches cut in the curved part of each cuff. Four turns of the key take you from the top of the threaded post to the fully raised wedge. It is really only the last 2 turns that raise the wedge, the first two just thread the key onto the post.

One cuff is numbered "378", the other "451", and the key has the same numbers, one on each side of the flat round top of the key. On the key also are some letters, some of which have been rubbed away over the years, marked with a "-" in the following: There is an arc over the hole for the key chain saying "---IAN ENTERPRISES" and a line below the hole saying "A-. GARH".

If we can provide you with any additional information that would help you to identify the origin of these handcuffs, please ask.

Very much looking forward to your thoughts.

Thanks!
Karla Blake

Sorry to tell you this, but from looking at your photo - you have a pair of "Indian darbies"...which are nothing more than a cheap reproduction of a common British handcuff. They are most likely made in India, and could have been manufactured as recently as this year,5 years ago,or 10+ years ago. Never-the-less, their value to collectors: $15.00.