A detailed comparison can be made by super imposing images of the reverses. The first row of images is 1651, crown image 1 super imposed on 1651 crown image 3 to test the process. Matching up the positions of the stops and the shields leads to good overall alignment within the limitations of the hammer process. The second row super imposes a 1652/1 crown, image 6 over 1651 crown image 1. It is not possible to align these images therefore the 2/1 die does not originate from the issued crown of 1651. Moreover the variety of digit 5’s in use can be clearly seen. The central transparent images clearly show that the size and shape of the V above the shields is quite different. This occurs thru’out the crown series suggesting that there were two sets of punches being used to make the reverse dies. The harp punches are also different.