Indeed another well-preserved ghost sign for the Atlantic washing machines covers the lower part of this wall. These were produced between 1955 and 1969 (for more information, please see an earlier post about an Igol / Atlantic palimpsest).
The slogan "La machine à bien laver" can barely be seen, stuck between the black background stripe of Atlantic and the frame of an earlier painted sign now covered by the one for Shell.
This ghost sign was painted between 1966 and 1969 as the drawing of the washing machine corresponds to models Atlantic launched in 1966 and 1967. Before 1966 the design of the raised vertical part with the control dials was slightly different, the shorter rectangle being on the right, not on the left.
Location: D 137, Belluire, Charente-Maritime / Pictures taken in May 2012