‘IVORY SOAP…99.44% PURE’
All I can say is that 0.66% is certainly working very hard indeed.
This 1919 ad shows soapy soldiers bathing on the deck of a troopship and being sprayed by a kindly – and generously endowed – sailor: ’25 under the hose at one time.’
The dropped-soap theme of this ad seems, at least to our modern, knowing eye, to have been revisited during the Second World War by this one for Buna bath towels.
Apologies. My fractions always go to pot when I’m breathing heavily.
Of course, 100% – 99.44% = 0.56%, not 0.66%. Or maybe they are giving 100.1%?