Moonlight by Gerald Coulson. (AP)

Flying secret agents in and out of occupied France, transporting arms and radio equipment to the Resistance, and collecting downed airmen from behind enemy lines, was one of the most hazardous flying operations of World War II. These cloak and dagger sorties, always conducted at night by the light of the moon, required a cool head and inordinate flying and navigational skills - a duty performed courageously by the pilots of RAF Special Duty Squadrons. Due to their clandestine nature, the true magnitude of their operations only became fully appreciated when the war was over.

Signatories: Flt Lt Peter Arkell (deceased).

Limited edition of 25 artist proofs.

Print paper size 19 inches x 16 inches (48cm x 41cm)