What are they playing??

What are they playing??
This unknown snippet from the 4th movement of the Bruckner Symphony No. 5 comes from a colleague in Germany. The orchestra seems to be playing together, but what edition is this??? Thanks to Nicolas Couton in France, we have been reminded that it is the 1876 first concept edition as prepared by William Carragan.

Download: bruckner_5_1876.wma