Sunshine, there is a really long answer to what you've asked. You willing to read some and learn? That's what it will take. The coins you show are nice examples of circulated coins. Those because of being circulated have little increased value unless in pristine untouched mint condition. Please realize multiple BILLIONS were made. Many were set aside, and now are making their way into circulation because of relatives dumping grandad's old stuff. these usually aren't the "good" stuff.
If you want to get into the error coin field, welcome aboard! Why not start by reading up on a few things (hint, hint) below in my signature space is a book you can download, give it a try. It will help get you going. I'm currently working on Volume 2, on error coins among other topics. Real easy read, I like things simple! There are other resources available too, websites and books but do start learning what is and what isn't an error coin. There are big indicators that let you know.
Of the coins posted, there is a doubled die on the reverse side of the 64p's but without a close up pix of E PLURIBUS UNUM, can't tell. Like Spence said the 1960's years had a problem with the dies and details being lage and close to rim. Also an indication of die wear is that metal moves outward from all that pounding,moving and stretching the detail, also letters become mushy looking, just die wear.
That's the fortened shorm...

Here's what a Doubled Die will look like on the reverse of the 1964. Notice the notching of the letters (yellow) and the "layering" look on the blow example...

Edited by Crazyb0
10/10/2017 11:53 pm