These look like Minority trade, trade beads. These are probably very old but not ancient. The air bubbles are a sign of age. Made in China.
They have the classic starburst pattern is typical of these beads. It's very early here so I cant get you the dates right now.
Hope this helps. I have a strand of these for sale on my Ebay store right now. You can go to Anthropoasis on Ebay and see some just like them.
I hope this helps.