Handcuffs in evindence photo Nürnberg Trials

Here is Nürnberg trials evidence photo, were Soviet union soldiers are studying German Gestapo handcuffs and leg irons  in Berlin at Gestapo prison 1st June 1945.

I remember looking to see if I could find out what handcuffs would have been used during the trials but every picture they are sat there unrestrained, even laughing because of translation failures. I assume it would have been Darby cuffs but I never saw them.

My dad was at the Nürnberg trials for a few days (not as a defendant) but unfortunately he was not into restraints as I am but I believe the Nazis were brought in court and secured behind a glass enclosure of some kind.

Spencer