Not trolling at all.... just rendering OPINIONS of your coins based on what we see in not-so-quality pictures.
My guess is these coins were cleaned and not rinsed properly several years ago. They were then stored in a humid/hot environment and what we see now is the results of that storage.
Take a sample of 12 of your coins (what you think is low-end to what you think is high-end) and send them to ANACS for 3rd party grading and see what the results will be. ANACS is offering a year end grading special right now. For 119$ you can get 12 coins graded. Return shipping is free. Take advantage of it! 119$ is a cheap tuition for an expert grading lesson!
Good luck!