Good Luck. There are examples that will appeal to social history enthusiasts.
Dartmoor Princetown Prison & Postcard Devon Valentines Real Photo unposted
Dartmoor Princetown Prison Postcard Devon Valentines Franked Tavistock 1904
Dartmoor Princetown Prison Postcard Devon Real Aerial Photo by Aerofilms Hendon
Dartmoor Princetown Prison Postcard Devon Real Photo Chapman & Son Dawlish 10955
Dartmoor Princetown Prison Postcard Devon Chapman & Son Dawlish Real Photo
Dartmoor Princetown Prison Postcard Devon Real Aerial Photo franked 1935
