Thank you so much, Dirk!
Sorry, I can't really help with your question what the name "Florida" refers to. On ebay it is frequently used for this type of Zwiesel vases, but that may certainly be wrong.
Lesley Jackson just states: "Löffelhard ... designed ... a series of coloured underlay vessels, sometimes containing bubbles, around 1970", without giving the name of a range (which she usually does) - so maybe it is the colour?
Anyway a nice vase, one of my "oldest" pieces of glass.

And rather uncommon, as from the about 50 pieces currently on German ebay there is none in this colour.
But I just saw that Astrid has one in her collection as well...
Michael