Scanned from Portuguese magazine Século Ilustrado, No. 482, March 29 1947. Click image for 816 x 546 size.
"It is indisputable that:
Kolynos cleans your teeth with absolute safety, because it does not damage the enamel. Its composition unites all the the most indicated and effective substances, for the complete cleanliness of your teeth.
It cleans teeth without danger."