Good Luck. There are examples that will appeal to social history enthusiasts.
Dartmoor Princetown Prison Postcard Devon Real Photo Kingsway Franked 1921
Dartmoor Princetown Prison Postcard Devon Real Photo Chapman & Son Dawlish 10955
Dartmoor Princetown Prison Postcard Devon Real Aerial Photo franked 1935
Dartmoor Princetown Prison Postcard Devon Real Aerial Photo by Aerofilms Hendon
