went to my local metal detecting club meeting tonight, and as I walked in the door there was a huge assortment of detecting stuff from a past away dealer, and I was asked if there was anything of intrest there, I noticed the Fisher CZ3D brand new in the box and asked how much, so a price was settled not knowing anything about them I paid 250 just because I was told to buy one if I ever came across one, brought it home and messaged a freind of mine and the first thing he asked what is the serial number I told him 10210740 he said I did good