Abstract I find the artistry of these advertisements spectacular! Getting them has already set me on a quest to get the others in the set of 19 listed on the flyleaves of the envelope. There is plenty of humor in these illustrations! The advertisements seem to be for various products of Laboratoires M. De Rive in Paris. One of the two TH advertisements for Strongénol – the one with brown foreground rather than green -- was actually sent as a postcard, unfortunately without a clear date stamp. ...