I have also established that, yes, it was made in the 1930's, and it is crystal (it has a beautiful ring to it).
What I wanted to find out now is - is it okay to ask on this forum what sort of value this bowl would have? If it is not the done thing, I will completely understand. I just don't know where to start with what it may be worth.
For something that is over 80 years old, it has a very 'today' look about it, beautiful simple shape and design, and I really cannot believe it's condition after all this time. I seriously did not think it would be so old!!!