Well I just want to know how valuable a machine it is and if anyone can tell me what they sell for. I got a clue from calling Whites just a minute ago but then again I cannot imagine they would tell you that the machine they made was no longer worth a damn. Maybe they would but........Anyhow here's the info. Its a Whites Surfmaster 2 or 11 Pulse Induction or PI . Its pre 1998 with a discrimination knob and as sensitivity knob. I live in Michigan and expect to use it on freshwater beaches since we have a shortage of saltwater here in the state. I understand that these machines have no real discrimination and nails that would be eaten in 3 months in saltwater are still here a 100 years later in Michigan's fresh water.That's not a problem if this machine can reach out and find these items and jewelry of gold and silver too. Please let e know what I have . By the way its a Pre 1998 machine with yellow rods and a Amphibian 2 coil. It is running on 3 9 volt batteries.Thanks in advance for any and all opinions. Michael Oh and I have been married 3 times so you really cannot hurt me too bad by just laying a shot or two upside my head..Just throw as close to an honest shot across my bow as you feel like throwing..Thanks again MK