Where to do research on antique glasses?

Hello!
The thrift stores around hereha e been good to me once again! I found these antique glasses for $5 for the pair, but I'd like to know more about them.

Both are made by C.O.C., 12k 1/10th GF and are Ful-Vue model.

Who is COC? How can I find out more about them and when this model may have been a thing? Thank you!

 

FireBall, just to get started, you can see some of the listings on eBay for C.O.C. eyeglasses. Perhaps some of the listings may have a bit of information. (I do see that some say that these are ca. 1930's, but I am not familiar with the company myself.)

These are recently SOLD listings:
https://www.ebay.com/sch/i.html?_fr...ES&LH_Complete=1&rt=nc&_trksid=p2045573.m1684

and these are currently for sale:
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=C.O.C.+EYEGLASSES&_sacat=0

 

You might try here
http://www.antiquespectacles.com/guide/guide_to_assist.htm

 

I ran across that site. I don't believe my glasses are all the way back to the 1800s. SBSVC was probably right saying the 30s,but I have no idea how to validate that.

 

This has some info on Ful Vue which was a style originating in the 1930s. Frankly the bottom pair of yours look pretty much like what my husband was wearing in the 1980s.

http://www.vintagesunglassesshop.com/ray-ban_ful_vue.html