The bowl is from Eda Glasbruk in Sweden - the pattern is called BOWMAN (that is the original Eda name given in their catalogues). Date in Carnival was the late 1920s. The item is shown in Eda's 1929 catalogue.
The pattern is very similar to Brockwitz "London" design, as Pamela noted (by the way, that pattern is called "Nutmeg Grater" by Carnival collectors). However, there is an extra design element in Bowman that can be seen on the bowl shown in this thread - that is the row of notches both above and below the wide diamond band. That details shows it to be Eda's Bowman. It's most unusual to find a bowl from Eda in the UK, unless it has been brought here by a collector.
Glen