Oil on thick wood panel undistinctly signed on bottom left part " José Tapiro" & dated underneath « 1873 ». It appears when darkening the background of the photo. Provenance : Private Barcelona Spanish collection. 
Value is around 25-29000 € regarding a comparable painting recently sold  (Two arab musicians Oil on wood 20x13cm Hampel Munich 24-9-2020 lot 661). Here proposed at 15900 €.