I have a Morgan 1878 with the concave breast. I also have a Morgan 1878 7tf "reverse of 1879" without the concave breast. Could someone remind me (I used to know) where the concave breast came from and when it is supposed to be typical? It seems like the concave breast is typical of the 1878 and changed in 1879, but my memory is vague. I forget the specifics of the different reverses. And my books and Coinfacts.com do not elaborate TIA
