This is an image of Mantegna's Adoration of the Shepherds, from 1495-1505.
It is accompanied by the following caption:
As his finances worsened Clarence Mackay (US1797) sold this masterful work by Mantegna, Adoration of the Shepherds, from 1495-1505, to the Metropolitan Museum of Art.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.