I was able to get a pretty decent close up of the die gouge that is present on the reverse of the 1972 Doubled Die Lincoln Memorial DDO 1. Located just above the D in UNITED. Forgers are aware of this now. It should be there on the real ones but be careful
I couldn't see anything in the other photos, I was squinting so hard. Then I scroll to yours and its like I'm seeing for the first time! Well done, sir!
Here, I'll give your site a plug and also show off some of his (@gijoe76) great coins, I think he's too humble. http://robecsimages.com/gijoe.html
Bob's work is amazing. I put a lot of thought into making a decision about 18 months ago to looking for someone who's coin photo skills could do my coins justice. Saying that, I looked at thousands of amazing coins and pictures before I decided on Bob. I have about 30 more additions and they will all be heading his way soon.