Flight archives from January 1920 provide information for aeroplanes displayed at Paris Air Show:
Paris Air Show at a Glance, Flight 1 January 1920, pp. 16, 17.
http://www.flightglobal.com/FlightPD...20-%200018.pdf
http://www.flightglobal.com/FlightPD...20-%200019.pdf
There is an information related to old Mystery SPADs thread (see link below), particularly item 40 and, possibly item 42. There is a good reason to believe that at least one of the airframes hanging from the roof girders was overhauled or rebuilt for a 1919 Paris Air Show.
Regards,
Yavor
Mystery SPADs thread:
http://www.theaerodrome.com/forum/ai...ery-spads.html