The item the sticker is on is a blow moulded deco style vase. I would guess late 1920s - 1930s era. It is similar to several other Carnival vases. We don't know who made them - the only facts I have are the acid stamp on the base (Czech) and this Coronet label.
Looks like Della is on the right trail. We bought the vase some years ago from a US auctioneer who was based in New York State.
THANK YOU both for your help, Della and Frank.