Bohemian/Czech glass mysteries, who done it?

I really enjoy mysteries yet I gotta say, collecting Bohemian and Czech glass is an especially elusive category as far as finding any information, even the country of production can be put into question as there were instances when Czech glass masters traveled and worked on the same type of glass for another company.

Here we have two vases who have many things in common, and are also part of a group of decorative glass vases with decors in different colors, and in a spatter type of hot furnace applications.

These were described as British for the tall one, and Czech for the shorter one. We have more examples in the Czech glass group on FB. There are specific Bohemian glass producers who also have been attributed here on CW. But I will not give a source as I don't know.