American Handcuffs (AHC) N-105 N-500 N-550 / fair value?

Hello,

I'm a collector of handcuffs and other restraints from Germany.  Right now I'm planning to sell my little collection.  There's nothing special in it, so I can figure out the average price by looking at completed auctions in eBay and the asking prices from commercial sellers.

I have three pairs of American Handcuffs (AHC) restraints in my collection:
N-105 chain handcuff, steel (with AHC sales box, "snake" logo)
N-500 hinge handcuff, steel
N-550 hinge handcuff, steel (with white AHC sales box)
all with keys, working and in excellent overall condition.

It's really hard to find out a fair price for these.  I couldn't find such offers on ebay.de, not even on ebay.com in the U.S.  Especially the hinged cuffs are extremely hard to find.

What do you think a fair price might be?

Thank you.

Hi Felix,
I'd say around 80-100 Euros for the N-105, maybe 180 Euros for the other two sets each, more if you're lucky if you find a collector who's willing to pay that. I like AHC, but I already own these.