While I dont still use one . I once owned a Whites' coin master 6000D. I believe thats what it was. Had the big blue metalic box curved handle with a black button on the handle tip. Here is a pic of the last really good find I made with it. Almost 30 years ago. I gave the machine to my brother in law and dont know if he still has it. But I found this in Suffield , CT. in the front yard of a big colonial farm house . The property had been unused and uninhabited for many years before I got there. It was about 6" deep . I thought it was a toy at first . Until I held it and cleaned it up. It is a Smith Wesson revolver from the 1850's. Name and patent dates are on the sight guide on top of the barrel and very legible. Tried to get them in the photo but couldnt get my phone to focus in that close. It has a rosewood handle grip and still has a lot of the chrome plating left on it. Enjoy.