
Royal Engineers, clearing an area that was mined as part of the anti-invasion measures. The detecting equipment in use is the polish mine detector. Photo P Markham Collection

Men of HQ BD Squad are using high pressure water jets to wash out anti-invasion bombs from the sand at Folkestone. The mines were laid around 1941.
Staff Sergeant Patterson, from London, holds a mortar in his right hand and a B Type C mine in his left. Photo P Markham Collection.

High Pressure Jet Washing of anti-invasion defences.

A mine detonating during high pressure water jetting. Mines were laid around 1941. Photo P Markham Collection.

High Pressure Jet Washing.

For seven months a BD Unit has been engaged in clearing anti-invasion mines, from the last recorded mine-field in the UK, from the cliff face. The work is so intricate here that the signs will remain in place for another 3 years. Photo from P Markham’s Collection.