A
Anonymous
Guest
Deep and shallow iron co-located with silver responds different. That is fortunate for us in picking the older deeper coins from the iron. If iron an silver are co-located and they are shallow it takes more skill to separate the two. Again using the half of a horseshoe with a quarter as an example if the quarter is touching the half a shoe then the predominant sound is low. However, if the coin and shoe are at about 6