Hello! Selling this Ben Franklin version of Ted Bogusta’s “DPS” (dual position) coin set. This has magnetic properties and does not use shells for a Copper Brass Copper coin effect. This was purchased from Nathan Kranzo for research purposes and never used. This is the lowest price you will see for any of these coins. Check out KranzoMagic or Meir Yedid’s websites for comparison!Accepting Venmo for payment!