1972 D Lincoln Cent ?

Markers to what? Tell us what you see on your coin and tell us what you think it is.

Give us a number as to which double date you are referring to. And maybe a link?

Markers are good for verifying a variety, but you need a variety to attach the markers to. We could do this for you, but you'll get more out of this if you do the legwork. If you have markers, what variety number is it?

http://www.coppercoins.com/lincoln/...ie_state=mds
Your coin is nothing like that die. You have to match the hub doubling first. Without the doubled die, the markers mean nothing.
Variety first, markers to tell die state to confirm variety, mintmark locations must match on pre 1989 coins. All hub doubling must match exactly to be the attributed die number. Also that year, half the cents had master die doubling. (These are vary common from all mints) So a lot of study goes into this years coins.

Along with the comments above, we may be seeing the emergence of a Die Deterioration Ridge Ring in photos 3 and 4. That would be emergence, not full-blown.

Well let dwell on this a bit. The biggest clue for the 1972 DDO's on the Philly ones (also the Denver ones will show the same thing) note the shape of the '9' at 11:00:

Note the dies 1-8 on the '9' with the arrows. See how the DDO affected that area, and the normal ones are just rounded. (images on the top row) This is an aid you might use on your searches on the 1971-1972 cents. This is what will help you move a lot faster in your searches. When your ready for sorting out which die you have, you can ask when you find on of the DDO for that year. Now you have a clue as what to look for. Save that image for your personal coin files. (If you don't you will have to get in line for the kicking machine for not doing it)