hai,i have functional coins are available.all are east india coins and other oldest coins. Needle test comes on both sides.pure copper coins. the needle winds the coin clockwise and anticlockwise contineously without stop until we movedout from coin circle. from the coin to upto 4 ft the needle functioning. These are all rare coins.Business only at my place tamilnadu. if you have interest contact me by email kktrading59@gmail.com thank u