The B grill measures about 18 x 15 mm ( 22 x 18 points ) I tryed to count the points, but was unable to enlarge your scan enough to see the points clearly. If you could re scan at your highest resolution and drag a copy into paint, click the paint brush and pick a color that shows up well. Choose a row thats clear top to bottom and one thats clear side to side. Hover your cursor over each point and click once, move to the next point. When done, you can count easily the points. Remember that the points will be the depressions on the back of the stamp. Here's a Sc 94 E grill 11 x 13 mm ( 14 x 15-17 points ) that I counted the pointd in the manner described. I hope that this helps.

