Hi, I am trying to determine whether or not this trick - "coin through sugar packet" is considered "public domain". This trick is available from many sources, but I cannot find out who the inventor of the trick is or when it was first being performed.
I am a moderator on a magic site and have been tasked with determining if this trick is in fact "public domain" as it is a trick which is accessible to members (provided they have the proper access. If the trick is NOT considered public domain then I can have it removed from the site. (For those who are interested, the site is: Magichat
I thank you for your time and effort in help me with this research.