I feel the bet by hand method to sort pennies is the sound copper pennies do make a high tingle bell sound compared to the clunk sound of Zinc - thats a guarantee just drop a few to a table,you will see haw fast that is. you will never have to look at the dates,
I have found 1982 Zinc and 1982 copper - the sound does not lie. I see weighing as to slow for each penny .
Bookmarks