English: 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
2007-08-09 22:03 Oosoom 1944×2592×8 (1568201 bytes) 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
{{Information |Description={{en|Water conservation (anti-vandal) mechanism added to many locks on the en:Birmingham Canal Navigations in en:England. A key is needed to withdraw the large bolt which prevents the paddle spindle from turning. This