Docklands Light Railway tickets started with the new operation in 1987 (I was there!). In turn they were also replaced from September 2008 by the current DLR Shere machines which use cards with rounded corners.
Canary Wharf CAW08 - Docklands Light Railway ticket - London DLR
ORIGINAL 35mm SLIDE CANARY WHARF RAILWAY STATION LOOKING EAST
Canary Wharf CAW08 - Docklands Light Railway Schlumberger ticket - London DLR
Canary Wharf 09 CAW - Docklands Light Railway UTS ticket - London DLR Apr 1999
Canary Wharf 05 CAW - Docklands Light Railway UTS ticket - London DLR Dec 1997
Canary Wharf CAW10 - Docklands Light Railway UTS ticket -London DLR early layout