What I see are two copper Lincoln Memorial Cents. For the 1970 S, there is a "Small Date" variety that is worth keeping. Yours is the Large Date. For the 1966, there is a significant Doubled Die Reverse that is extremely worth keeping. Yours is not that variety either. You do have two copper cents (the newer ones are zinc alloys)...but whether they are worth more than two cents would be up to a prospective buyer. I would not pay a cent over face value for them, though (as most collectors wouldn't, either.) I do have one of those old glass milk/water jugs that's about 2/3 full of them (because why not? Ha!) and I plan to take them to the bank once it's full. (I just want to know how many it takes to fill it up.)
On the 77 there is a ridge running down his back that is clearly not on any others that i have here to look at and compair to i also spent time looking around at 77 cent coins and havent seen any like that that would be the error i was refering to on the 77
As for the 66 coin the chin and back of head look off bigger if you will and not center struck is i guessing why the lettering is not look right but looks like is uneven in thickness and bunched up or thicker in areas throigh out I am a newbie and looking to know what to or know what to look for in a error thank you for your time and patience with me I am a fast learner and do appreciate all of your guidance and info thank you
@halfday40 Not Mint Errors.. sorry I want to share this webpage with you - http://www.error-ref.com/ There is a lot of information on true Mint Errors