A Qajar lacquered papier mache mirror signed 'Ya Sadiq al Wa'd', Iran, late 18th century, of rectangular form, with removable cover decorated on the front with a scene of the Holy family, signed to top, and reverse with a Mughal-style scene of pupils at their lessons, the reverse of mirror case with another version of the Holy family, bordered with scrolling leafy flowers on gold on a black ground, mirror missing, 25.5 x 18cm. Note: This mirror case bears an inscription that is largely accepted as the cryptosignature of the celebrated artist Muhammad Sadiq of Isfahan. Muhammad Sadiq was a gifted pupil of Muhammad Ashraf, who flourished from A.H.1128/A.D. 1716 to A.H.1177/A.D.1763-4. His output was not confined to lacquer alone, and his oeuvre includes two oil paintings in the Chehel Sotun Palace in Isfahan, one produced for the Afsharid ruler Nadir Shah and the other for Agha Muhammad Khan QajarMirror missing, slight crackling to lacquer, small scratches otherwise good