Wrigley Tooth Paste Co., Ltd - 1928 dated Stock Certificate - W. W. Wrigley signed - Not the Gum Maker

British American Bank Note Co., Ottawa. Signed by W. W. Wrigley (not of chewing gum fame). Important! Rare Type! Toothpaste is a paste or gel dentifrice used with a toothbrush to clean and maintain the aesthetics and health of teeth. Toothpaste is used to promote oral hygiene: it is an abrasive that aids in removing dental plaque and food from the teeth, assists in suppressing halitosis, and delivers active ingredients (most commonly fluoride) to help prevent tooth decay (dental caries) and gum disease (gingivitis). Owing to differences in composition and fluoride content, not all toothpastes are equally effective in maintaining oral health. The decline of tooth decay during the 20th century has been attributed to the introduction and regular use of fluoride-containing toothpastes worldwide. Large amounts of swallowed toothpaste can be poisonous. Common colors for toothpaste include white (sometimes with colored stripes or green tint) and blue. Read more at https://en.wikipedia.org/wiki/Toothpaste