Considering provenance is an enormous deal in the art market, and for galleries/museums, the lack of a paper-trail, and the glaring gap in the run-up to and during WWII, will likely mean that this work is bought by a private collector, whisked away to a storage area, and then never loaned out to any public gallery for viewing.
That phrase intrigued me too, so I followed the link to the source, and it turns out that it was expected to be exhibited before the auction (no idea if that actually happened):
> Ahead of the auction, the painting will be exhibited in Switzerland, Germany, Great Britain and Hong Kong.
I have a feeling the painting was kept hidden by the Nazis who stole it and is now making its way back onto the market via one of the private offices in Germany, Austria, or Switzerland.
