Recently I saw on Ebay a perfect L’Autopatte for sale. This one was not made by Fernand Martin but by Georges Flersheim, one of his successors after 1912. The box is exactly the same as the box Martin made and even has the ‘FM’-mark on it but the toy for sure is made by Flersheim. Take a look at the strange wheels and the absence of the letters ‘FM’ on the seat behind the figure. The key also differs from the key Fernand Martin used.
The pictures show this although they unfortunately are not too sharp.