I understand this to be Czech too - it is certainly not Italian/Muranese. It's a good example of hot-worked glass formed at the furnace.
I never found the maker or designer for this, but believe that it is probably from a range called 'Niagara'. It can be found in either of two colourways - green/brown and green/blue (I think...). I would imagine that it was either made at Skrdlovice, or at Chribska, but my instinct (for it is only that) says the former.
Hope this helps,
Mark