Clipping Cupid's Wings

Here's an old-master painting I haven't come across before: Minerva and Time clipping Cupid's Wings. It's been in private hands and is vaguely attributed to the Flemish School (17th Century). I'd like an expert to examine this, because it has a look of quality about it and I'm sure it's worth a lot more than £10,000 to £15,000. You'll find it in Sotheby's pre-auction exhibition of Old Master & Early British Paintings, which opens on 15 April. It's Lot 9, Sale L09631, auction on 22 April.