I went on coneca site, and the only markers is ODV-007 heres a link to the site http://www.varietyvista.com/Eisenhower Dollar ODV Changes.htm and here a photo of the R in LIBERTY
This may be the first post of yours I've seen where I think I can see legit hub doubling. I know that variety and error collecting from circulated coins is your thing, and I am not trying to be rude, but I suggest you invest in a better camera and/or a better setup that allows you to show us what you are seeing when you make these posts. Your pics make it very hard to discern one way or the other.
Richard I know it here if anywhere th e die variety when comes to Eisenhower dollars. Here the link join and post it their. I am sure you will get the best answer.1972+1974 has had a die variety added but not sure what date and mint mark notice noted. http://forum2.ikegroup.info/viewtopic.php?f=137&t=1643&sid=00a23982ad80ef94d891ad787475599d