Only 1500 pounds??? (sorry I couldn't find the little key on my keyboard for the brittish pound sign!) It seems pretty solid, provenance-wise but the additional signature by Pietro Psaier is kind of weird... that's like finding a Mashmallow Sofa with both Nelson's and Irving's signatures at the back. and an additional turn off... they don't return emails, even if you are eager to buy...

Name: Cambell's Condensed Limited Edition Oil on Board 14/50
Artist: Andy Warhol / Pietro Psaier
Studio: Factory Additions
Period: 1980s
Description/Condition: Pietro Psaier worked along side Andy Warhol in his studio 'The Factory ' in New York. Signed Limited Edition no.14/50. Very Low Edition. Measures 55cm x 75cm. Oil on Board. Signed by both Pietro Psaier and Andy Warhol. Accompanied with Studio Psaier certificate to rear.