I have a Ted Williams Treasure Locator detector made for Sears by Whites Electronics that is in good condition that I would like to sell. On the outside of the control box it says Model No. 321.59602, but I think that is the number Sears assigned to it. On the inside of the battery compartment lid, the Whites ID tag say it is Model TW4D. It is a TR discriminator and has an 8 inch round coil. I have the original manual and everything on this machine works like it's suppose to. Original purchase date: December 1977. You could detect with it today, but since it requires 14 AA batteries and has the older style "shoebox" metal control box, I figure it may only generate interest for a collector. I don't know what value to place on it ... so if you are interested, make me an offer.