Bottleneck en métal This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic license. You are free: to share – to copy, distribute
truetrue English Diagram of the English southern canals, showing the Osney Bottleneck and the proposed canal restoration between Stroud and Lechlade. Wikimedia
Attribution-Share Alike 2.0 Generic license. Attribution: The Catthorpe Bottleneck by Peter Whatley You are free: to share – to copy, distribute and transmit
Attribution-Share Alike 2.0 Generic license. Attribution: A417 - start of the Birdlip bottleneck by J Whatley You are free: to share – to copy, distribute and transmit