Here are some more photos of Bishops in Italy, from the IWM site. The original captions appear below the photos.
Bishop 25-pdr self-propelled gun of 506th Battery, 142nd Field Regiment, 14 September 1943.
Bishop 25-pdr self-propelled gun near Cava, 28 September 1943.
Rear view of a Bishop 25-pdr self-propelled gun near Cava, showing the crew inside the fighting compartment 28 September 1943.
A Bishop 25-pdr self-propelled gun of 142nd Field Regiment Royal Artillery operating at a captured airfield among the wreckage of German aircraft, 12 October 1943.
A Bishop 25-pdr self-propelled gun of 142nd Field Regiment Royal Artillery firing at night from a captured airfield near Grazzanise, 12 October 1943.
Bishop 25-pdr self-propelled gun of 142nd Field Regiment, Royal Artillery, on a Diamond T tank transporter of 610 Heavy Recovery Section, REME, 23 December 1943.