Have been looking through some old paper work and knew that Ray McKee had sent me an actual tracing of the Radner Seance Cuffs. Hopefully Joe will be able to attach picture (must try and work out this photobucket system!).
The tracing was sent to me back in about 1985, Ray also sent me details of the Mirror cuffs which is what I based my models on, however I do not know if Ray McKee actually examined the original cuffs but certainly the mechanism seems close to the recent photos that have become available. I did make up 6 sets of the Mirror cuffs in polished aluminium and used a simple barrel key to turn the mechanism 6 times to open them. Also made up 5 sets of them in Bronze which were nickel plated and on these I used a Legge 5 pin tumbler 'Yale' type lock. I would be interested to hear who has these copies now.
As I have previously said I did examine the original cuffs when I met Sidney Radner at the Magic circle and the lock is a 5 slider mechanism which I do not think was made by Bramah - more like a cheap French copy of the lock that is typically found on small wooden boxes etc.
if you have any trouble reading the writing let me know and I will try and help.