Thank you so much Daniel , its nice to have confirmation in an area of the hobby I have a few gaps in my knowledge of , also great to get the French perspective/information that is often missing when researching !
I am really hoping to get some info on the motor unit when it is in my hands as hopefully there will be something to identify the time period when it was actually converted 
I have an English MO in the collection from the same time period but of course it IS clockwork ...
I love the look of this one and although I am usually a fan of keeping things original mytself as well , I think it by itself also speaks of the ingenuity of early modellers and as such am happy to have a chance to own and display it .
