ELI5: How do I sell certificated stock? Can certificated stock be enrolled in a DRIP?

I have KO certificated stock gifted to me as a child and as a poor post-grad I want to sell it. I already sold my non-certificated shares when they were worth more, and this week shares are up $2 since last week. Is there any way to sell certificate stocks at market price? From what I understand, certificates have to be mailed in. Would it be better to enroll them in a DRIP? Can you even do that? I'm trying to look these things up, but I'm pretty new at all the language. Thanks!

Submitted May 30, 2017 at 10:24AM by superawesometwin http://ift.tt/2rQWSMM