Hi - welcome to the GMB
We've had discussions regarding these things on occasions, over the years - see this link for some details
http://www.glassmessages.com/index.php/topic,62933.msg353770.html#msg353770 .......... hope this helps, although you may well have already used the Board's search facility and seen this thread.
Regret to disappoint you regarding your request for values - as you can imagine, the value of anything is a very personal matter, and if you asked a dozen people to comment you'd probably get a dozen different answers - there are too many variables when it comes to assessing what something is worth so we avoid commenting.
Searching on line auctions may provide some indication - contacting auction houses directly will be useful, and speaking to professionals who specialize in glass will also help.
Wish you luck in your venture.