look forward to hearing about details on the bowl Praveen, it may help to identify the pattern on yours.
A percentage of Jobling bowls show the Rd. No. for whatever particular pattern it is. Some Fir Cone bowls - for example - show REGD. NO. 777133, which I believe was the first registered design from Jobling, and was registered with the Board of Trade on 29th September 1932, although the date of Registration for any pressed glass design doesn't mean that it was made on that date.
In fact judging by the quantity of Fir Cone bowls in existence, and the fact that Jobling re-registered 777133 giving protection until 1942, suggests that there are many pieces of this pattern which obviously were made some years after first Registration.
Other patterns will show a similar 'REGD. NO.' followed by a different No.
Probably true to say that the majority of Registrations from this factory received only the statutory 5 year protection - with the most popular ones being re-registered for a total of 10 years. Could be wrong, but I can't see any that appear to have been protected beyond 10 years.
If possible, look forward to seeing a clearer picture of the bowl showing the pattern.
Just to clarify my earlier comment ..... "It seems that the factory didn't Register this design"............ this is misleading, and I should have made it clear that this refers to the figurine and block ONLY, and not the bowl or plinth.