500x375 | 149K | jpg free download |
120x90 | 50K | jpg free download |
266x200 | 75K | jpg free download |
1024x768 | 428K | jpg free download |
2304x1728 | 1M | jpg free download |
Lock sluice opening gear, in Ellesmere Port, Cheshire, England more
This Victorian rack-and-pinion gear lifts the sluice gate to let the water out of a canal lock. It still works.
500x375 | 149K | jpg free download |
120x90 | 50K | jpg free download |
266x200 | 75K | jpg free download |
1024x768 | 428K | jpg free download |
2304x1728 | 1M | jpg free download |