But the thing is, I'm not getting correct coin measurements. Everywhere online and in books show the farthing having a diameter of 20mm. I measured 4 farthings from the 1800s and 1900s, and found them to be 20.193 mm. Then it (most sites) say the penny is 31mm, but I measured an unc one, and it's 30.861mm. So I take it MM pages won't work, eh?