From this ad, from 1929:
"Look to my Mannequin. Study the six spots where lines and defects first appear. Then study your own skin, and you will realize the great importance of Milkweed's extra benefits.
"Aging little lines and imperfections are no respecters of youth, so I have selected for my mannequin this month, a girl on the under side of thirty. Her skin, like yours - no matter how few or how many your birthdays - depends upon health for its attraction. Guard well the six starred places - the column at the right tells how - and your skin will respond swiftly with new loveliness."