Here we have a very early Irish National Army or possibly pre independence, Irish Volunteer period button.
The button measures 26mms in diameter, made of brass, it is of other ranks quality and has the early style eight stringed broad harp.
To date I have been unable to identify who made these buttons as it is only the company initials that appear on the button back:-
“D.B. CLOTHING Co . DUBLIN .”
Any assistance on identifying this retailer would be appreciated.