This is at the very front in the bow of the submarine. Six containers with compressed air and a desalinator are here. Swiss museum of transportation in Lucerne, Switzerland, Nov 3, 2014. (15/15)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70981241@N00">Kecko</a> from Switzerland (Rheintal SG)
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/kecko/15560934337/">PX-8 Mésoscaphe - Compressed air</a>