Interesting Peter, I would say you have my pieces Mother (or Father LOL).
I have no conclusive proof of mine being Czech either, but it just feels Czech - something about the quality of the glass and the very precise nature of the bubble grid.
Ref the blue bowl - thanks Ivo & Tiger.
It is part of a large range as suggested, first designed in 1964 by Toikka for Nuttarjarvi (L Jackson 20th C Factory Glass pp148 - called 'Dew Drop')
The design is given a whole page in 'Il Vetro Progettato - Electa 2000 pp206. Although in Italian I can make out the design is called 'Kastehelmi' the brief text states that production stopped at Nuttarjarvi in 1970. It doesn't give any clues as to which of the Finnish factories continued production. I know it is now made in multi colours by Iittala, even in two tone, pictures are shown of what I think is the original clear glass version and the now more colourful variety.
My piece is modern- I should look at my books more LOL