This photograph was included in Frith's publication 'Sinai and Palestine' which was released to the market in 1862.
This is another view of the old city of Jerusalem, which interestingly was altered when published in Frith's book - the tower on the left side appears to be erased in the 1862 publication. Although the photograph titled as 'Mosque of Omar' what we see in the centre of the photograph is in fact called Dome of the Rock. It is a common historic confusion, the real Mosque of Omar is a less prominent building which stands in another part of the old city, right opposite to the Church of the Holy Sepulchre. What adds to the confusion is the fact the Omar had in fact built another mosque on the Temple Mount - the Al-Aqsa Mosque which is located to the south of Dome of the Rock.

Albumen print. Good tonal range and in good condition, pasted on original mount, photographer's credit and title in manuscript on mount. Dimensions: 155 x 220mm. (6 x 8.5 inches).

Sinai and Palestine, Francis Firth, London, 1862.