http://varietyvista.com/ https://doubleddie.com/ http://www.lincolncentresource.com/ The above links are free to everyone to see, no signup or membership required. Some due dilligence on your part with some research would go a long way. Check your coins with the listings and when you post you can say " I think this is a match for ......................... on Variety Vista" for example. Your knowledge will increase as to what is a true variety or error the more you check against examples of genuine issues. Where do you think you see doubling and "other errors"?
On the the date I can't tell what's over the mint mark unless it a rpm.....and IGWT its hard doubling