As you are in Paris, French should be quite familiar to you so you may find some more details here:
Some figures need to be updated as for example, a 2523 that was not known to the market so far was recently sold by Sotheby's bringing the number of well identified 2523 to at least 20 whilst you can read some statements from Christie's that only 15 examples of 2523 are known to the market.
I never had the courage to translate all this stuff in English anyway.
Kind regards,
dcc
This message has been edited by DCC on 2016-01-01 03:57:51 This message has been edited by DCC on 2016-01-01 03:58:15