L'Ingenieur Français Construction Sets
L'Ingenieur Français was identical to X Series. It was made by Meccano (France) Ltd from 1932 to around the Second World War. It would not have been sold by Meccano dealers, but in ordinary toy shops and stores in France
Below there are manuals/leafets which can be downloaded by clicking on the appropriate image.
A L'Ingenieur Français set 1 instruction leaflet, print ref 7/632/85(1P) with a sticker for war time use dated 10/7/1943. It appears as though surplus L'Ingenieur Français instruction leaflets were being used up in Meccano X Series sets. Note that only the front page is displayed here as the rest of the leaflet is the same as the previous instruction leaflet.