Dear Teresa Maria, Alfred, Laurent and Leendert,
Many thanks for the information you kindly supplied.
Via the info supplied by Leendert I found the actual document he mentioned on the Gallica website :
http://gallica.bnf.fr/ark:/12148/bpt6k9631139m/f7.image
This is a very interesting source of info !
Many thanks again and best regards
Luc