7¢ Bistre Notches

On Plates 1 and 2 of the 7¢ Bistre, Marler found 19 subjects which had a similar 'group of lines' in the right inner oval near the 'E' of Postage. We are now aware that there are over forty of these notch CPVs to be found on those two plates.

A plan of comparing three measurable characteristics has been developed to help identify the various notch varieties. Be sure to see the information provided.