1830 Half Dime. What is the "dimple" below the ear and towards the back of the jaw. My Opinion: It's a centering mark. But I've never seen one when the obverse device is a face. I've only seen them on coins like the 2¢ piece. Opinions, please.
That's a center point of the die.and yes it is a pup on one of the marriages. Obv 3 and there is only 2 reverses to pair J & K R-4 LM- 6 or an R-1 LM-8
Valentine calls this the compass point in laying out the die. Same obv die for V-4 and V-6. Logan and McCloskey just call it a prominent center dot on obv 3 used on LM-6 and LM-8.
Thanks, all. It looks like my terminology was a bit different but it was the right idea. BTW, I have it ID'ed as an LM-8. >> Working << Nope, can't find it but I thought I had another coin with a center mark.