Hi and welcome to the board. I can't help with your first two queries but wanted to offer you some useful advice to help you to get the best out of the board...
When you post an item please would you ensure you include the following:
1. a descriptive subject line - see here for why it matters:
https://www.glassmessages.com/index.php/topic,17458.0.html2. a photo of the base of the item - seeing how the base is finished can tell us a lot about who might have made it, and more often who didn't!
3. a photo of the top showing the inside of the item without its stopper (where there is one) - the way a top is finished can tell us things too, as can the colour of the inside on a cased (different colour inside) item
4. sizes please - height and width are the least we need.
Photos of coloured items work best against a plain white background (a sheet of white paper or card does the trick) as then we can see the proper colour without it being affected by coloured or busy backgrounds. I hope this helps.