I have to many detectors and will be reducing the herd. I have a fisher cz3d f/s with the 10 inch coil all in great shape. The 3d has been in my gun safe since around 2009 and has not been used since. This 1121 3d has NOT been tuned by Tom. It was used when new in 2007 just a few times then went into the safe.The orig 8 inch is in new shape but the coil wire decided to shed its skin like a snake while it was locked in my safe.This is why I put the 10 inch coil on if you would rather the stock coil which works great just let me know and I will keep the 10 inch coil for my 6a.The stock coil wire has been covered with electrical tape.I took the detector out the safe to make sure it works, Postal m/o please $550.00 shipped to the lower 48. phil