Vintage Whites Cm4-D Coinmaster tr-discriminator Metal detector. I am selling this as is. This has not been used for years and had very little use back then. It was working when last used . However it needs 2 new battery holders whose plastic has broken from old age. There are 2 of them which are still available from Whites for $9.95 each plus $3 shipping. Part #523-0005 & 523-0006. It uses 15 AA batteries. The detector and coil are in excellent cosmetic condition and look almost new.