These were made for Germany’s Hardini/ Hard to find!
I do not have the German instructions, but I do have English ones. Very good condition!
A heavy-duty padlock is shown and locked. The key is then tossed in a velvet bag and mixed with four other keys that look identical. Four spectators then freely select a key, the fifth one is left for the magician. The magician then offers every keyholder to exchange the key they hold for his. Then each keyholder is given the lock to test their key, none of the keys open the lock, The magician then uses the key he ended up with and in full view unlocks the lock.






