"Royal" is trademark of Charles Dewandre who was in business 1855-1932.

Joseph Saive was in business from 1893 to 1962 at which time the firm was liquidated. It was taken over by Louis Peeters. I am not sure how long Peeters remained in business.

The barrels weighed 1.578 kgs or 3.478 lbs at time of proof.

Pete