Many makers of the Bubble Pattern, Anchor and Indiana had a line of Bubble pattern in the depression Era, but these are not either of them. I have seen this bubble pattern before but have not made out who the maker is. As for date I think you are looking at much newer version. The color is kinda of a sapphire Blue but not quite, would say these are made around the 70's, possible 60's. ad for keeping or selling well the overall value is not that great, most bubble patterns I have had hard hard press to sell, need to find someone who wishes to complete a set, not really a collector market item.