"Venetian School" is copy after Lambert Sustris

Deutsch sells on November 2015 a "Venetian School, 17th/18th century" Baptism of Christ, a large canvas (116 by 155cm) estimated at 1,600 to 3,500 Euro (quite a wide range, that).

It is in fact a good copy after Lambert Sustris (1520-1584), a work now in the Prado.Like with many Sustris works, it used to attributed to Christoph Schwartz instead. I don't think the work for sale is an original, it is a bit too stiff, too much following the original and not enough evidence of a talent comparable to Sustris, but if so it is a very good copy. As an original, it would be worth considerably more; as a good copy, the bottom estimate is way too low, and even the top estimate seems still too low for such a large work. I would be amazed if this didn't fetch at least 5,000 Euro, and considering the chance that it is a sleeper, it might go way beyond that.

UPDATE: sold for 4,000 Euro, above the highest estimate but still below mine.

UPDATE 2: now for sale at Christie's South Kensington (28 April 2016) described as follower of Pauwels Franck and estimated at £12,000 to £18,000! So my guess that this was worth more than 5,000 Euro seems to have been validated. Strange that they still don't reference Lambert Sustris though, the link is quite obvious and my blog quite visible :-) 

UPDATE 3: not sold apparently, can't find it in the results.