grrr - there's no image of the base on that one.
The "harlequin" effect (the broken canes) look a bit more complex on your bowl than the ebay link, and you don't have the two-tone effect of pinks - I don't know if the ebay one is Vasart, Strathearn or made by one of the original workers later. I'd still think Strathearn is most likely for your bowl.
I've certainly seen more Strathearn big bowls than Vasart ones, but to be sure, you need one of the experts in this field.
Could a kind mod shift this thread to British and Irish glass?