JBM,
I also agree that these are pure fakes. I have a few cuffs with JAIL names stamped on them (Salem Jail, L.A. Co., and such) but I have never seen a pair marked with a PRISON name except for fakes. I see Alcatraz, Andersonville, Yuma Prison, and just Death Row cuffs all the time and they almost always have their matching keys and a starting price of $9.99.
If any authentic Prison cuffs are offered, they probably would start off at $99.00 and not have their key. Chances are excellent that they would not be darby style cuffs either.
As Joe stated, most likely they would be Tower products. Providence Tool and Thompson would have the best chances to be ordered up if ever a darby was used at a prison. Both companies sold their wares under Federal contracts. Even in the unlikely event that a US prison decided to import some Darbies over from England, they would be identifiable as a Hiatt, RCS, or Froggatt product.
The cuffs offered as authentic are the same cuffs that are sold under all sorts of names to attract the buyer and relieve him of his hard earned cash. Maybe the seller believes they are for real, but chances are he paid less than $10 and is starting them off at about the same price in his auction.
Hope this helps. If you wish to read more about fakes, please go here...
http://reviews.ebay.com/HANDCUFF-COLLECTING-Why-collect-them-How-to-spot-fakes_W0QQugidZ10000000001203284
A yes vote at the bottom would be very appreciated.
mark
O--O