for the past couple days Ive been talking to my science teacher about metal detecting because he was interested and wanted to start so today i brought my detector to school to show him it , after school we went onto the field to give him a demo and show him the my machine and how i discriminate certain metals so i first dug up a Pennie , then i dug up a 1946 silver dime . my teacher then went wow , pretty lucky demo lol