from the 1930 Local Elections a poster for John Lumsden of The Irish Worker League who was running in Area Number 5. He polled a respectable 611 votes but failed to win a seat. Party Colleague Jim Larkin was elected in Area no 2.
The 1930 Local Election Results for Dublin are available here
Should anyone have any more information on that 1930 Election, John Lumsden or the Irish Worker League , I would (and the sender) be very grateful.
Many thanks to the sender.