TDC-1c-1960D(SD)-13: RPM, 2 CLASH EVENTS
This is a dual clash event that is found on a 1960D small date Lincoln cent. Indications show that the two clash events happened fairly far apart and are not related to a same clash event.
The first image shows the Memorial building roof line through the first two digits of the date.
Also notice that the mint mark has been re-punched (RPM).
The second image shows the clash mark left by the top of Lincoln’s head through the NE of ONE and the C of CENT.
These clash events can be identified by the die crack, indicated by the black arrow, that joins the tops of the CEN together.