Help identifying these cuffs

Local historical society has asked me to make a key for these 19th century leg shackles. I'm interested in knowing what brand they are.

Tower Detective. I have two sets of the handcuffs with keys

Local historical society has asked me to make a key for these 19th century leg shackles. I'm interested in knowing what brand they are.

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Thank you for the quick response. Could you post a pic of the key or provide a link.

Local historical society has asked me to make a key for these 19th century leg shackles. I'm interested in knowing what brand they are.

Click to expand...

http://www.holstcollection.com/ (A treasure trove of useful information)