Cosmopolitan April 1935 Page 139

SIX Wednesday Nights 

continued on page 140

SOMETHING NEW...SOMETHING AMAZING has happened to tooth brush bristle Pro-phy-lac-tic 

Photo-Micrograph of ROUIND-END BRISTLE Magnified 19.75 times

Photo-Micrograph of ORDINARY BRISTLE Magnified 19.75 times

Now. . . a great advance in protection of the gums. . . a new invention which makes sharp, saw-tooth bristle old fashioned! 

The startling difference between old and new is proved by the unretouched photo-micrographs, above. One picture is of a well known tooth brush purchased in the open market. The other is of the new Pro-phy-lac-tic. 

All other tooth brushes have sharp, jagged, spear-like bristles; because Round-End bristle is exclusive with Pro-phy-lac-tic. So is Penna-Grip, our invention which ended loose bristles by "welding" them into the handle. Pro-phy-lac-tic also gives you that famous tuft on the end of the brush, which enables thorough cleaning of the back teeth.

There are four sizes of the new TUFTED Pro-phy-lac-tic, with Round-End bristle of finer quality, full of life and resistant to moisture. Regular Adult and Small-type for Adults, 50 cents. Youth's, 35 cents. Child's, 25 cents. All in the familiar yellow and red box; guaranteed to satisfy you or your money refunded. PRO-PHY-LAC-TIC BRUSH Co., Florence, Mass. 

SURVEYS INDICATED 64% of all Tooth Brushes sold in the United States are TUFTED type 

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The average price of a new home then was $3450 about 2.16 times the yearly average wage of $1600. Which was about 2.56 times the price of a new car $625. Today?