O Século Ilustrado, Nº409, 1945 - 22a on Flickr.
"For a tasty meal!
The pain is gone
Don’t let the burning sensation in your stomach, flatulence and dispepsy ruin all your meals. Take a tea spoon of Magnésia Bisurada in powder or 2 to 4 pills. It is unsurpassed in fighting excess acidity - frequently the cause of burning sensation, flatulence and other forms of indigestion.
Digestion assured with
Sold in every pharmacy, powder or pills, 15$00 and 23$00.”