Hi again Bryn,
Ive never had cause to doubt it as it was bought quite a long time ago. Most of my glass was, I started buying bits and pieces years and years ago, before art glass collecting was even popular here. Back then you could pick up pieces everywhere for next to nothing so people had no reason to fake signatures and the like. Now I must admit, I havent learnt very much over those years...I collected purely on what I liked and what appealed to me in art glass or anything else. I ended up with quite a lot of overseas glass by default as Australia has quite a high migration from other countries
And also to my delight, Italian immigrants came over in the early days and bought a lot of glass with them.
These days Im more inclined to not buy anything because of the cheaper copies and the Chinese art glass that has flooded the market. Also the replica glass etc etc..it goes on and on. Most of my buys were from garage sales, ppl selling off 'old fashioned' items to make room for the new or car boot sales.
So I think it could be more than likely that the date on this bowl..one of the very first I ever bought..could be correct