Early commercial exploitation of CCTV technology; the sign reads: “Do you want to increase efficiency in your office? This can be simply and cheaply undertaken by Pye closed-circuit television.”
Photograph taken by Charles E Fraser. My investigations lead me to believe this was taken in 1951 at the Festival of Britain. Photo recently found by myself at a car-boot sale in London. 

Early commercial exploitation of CCTV technology; the sign reads: “Do you want to increase efficiency in your office? This can be simply and cheaply undertaken by Pye closed-circuit television.”

Photograph taken by Charles E Fraser. My investigations lead me to believe this was taken in 1951 at the Festival of Britain. Photo recently found by myself at a car-boot sale in London.