I'm not good with colors, but if they are 7-up green thet book for $75-$100. Don't know age. Again, take that with a grain of salt. I'm sure someone else will set you straight.
that's the classic emerald green or olive green with a twist of some other green black-glass McLaughlin cd-121. Worth like 15-20, or 20-30. McLaughlin made a lot of those in that colour. I Used to have one- sold it for like $20 or something then i forgot about it. Went to go looking for it one day cause i remembered i had 2 (the other's a teal green black glass colour- very pretty, very worthless) and it was gone.
You can also find emerald green black glass in McLaughlin cd-106, 164, 162, and 160. A 7-up green McLaughlin has got to be a bright 7-up like a hemingray or a 7-up bottle, and also much lighter.
So, not worth too much, but good lookin' never the less