Summary

Water conservation (anti-vandal) mechanism added to many locks on the Birmingham Canal Navigations in England. A key is needed to withdraw the large bolt which prevents the paddle spindle from turning. This one is on Ryders Green No. 3 lock on the Walsall Canal. Photographed by me 9 August 2007. Oosoom ^Talk to me 22:03, 9 August 2007 (UTC)

Licensing

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