M201 - external vinyl data plate
M201 data is normally only found on the dashboard data plates. The photos show an unusual example where there are vinyl vehicle data labels on either side of the body. On the left, it is just above the step in line with the end of the axe handle. On the right (unfortunately painted over) also above the step but higher as shown. These appear to have been made from a universal kit as the numbers and letters have been stuck on by hand. This sticker system is common for commercial vehicles in France and is obligatory for vehicles over 3,5 tonnes. PV is poids à vide (empty), PTC is poids total en charge (with oil and fuel), PTR is poids total roulant (with driver and passengers). Thanks to JLM for this information about the sticker.