Card measures approximately 19.5" x 15.5" (50 x 40cm). Probably dates from circa 1938.
The promotion was for soap bars and a Snow White storybook, all for only one shilling. The text at the top of the circle is quite faded but reads:
PALMOLIVE BEAUTY SOAP
3 CAKES OF PALMOLIVE SOAP & A BEAUTIFUL COLOURED STORY BOOK
SNOW WHITE AND THE SEVEN DWARFS
FEATURING THE WASHING SONG
THE COMBINATION FOR 1/-
In the lower right-hand corner, we're questioned on our knowledge of the Bluddle-Uddle-Um-Dum lyrics...
"DO YOU KNOW THE WASHING SONG? IT'S IN THE BOOK!"
Images and info courtesy of the Leon Concannon Collection.