@coop, the info I found on V.V. shows that the mintmark used for 1988 D was the MMS-012, 1987 D's used the MMS-011 with a few using the MMS-012. On the error-reference site they explained the deep punched mint mark referencing the 1987 D as the year with the deep punched mint mark and had a couple of pics of of them. The more I look at this cent the more I am convinced the mintmark on my 1988 D is a MMS-011.
Edited by Jim0815
07/11/2018 07:39 am