![](https://coimages.sciencemuseumgroup.org.uk/54/951/medium_thumbnail_e2012_248_2__0001_.jpg)
Part of gear for Douglas-Schafer sounding traveller
![Part of gear for Douglas-Schafer sounding traveller](https://coimages.sciencemuseumgroup.org.uk/338/360/small_thumbnail_smg00073460.jpg)
![Part of gear for Douglas-Schafer sounding traveller](https://coimages.sciencemuseumgroup.org.uk/337/520/small_thumbnail_smg00073460.jpg)
Part of gear for Douglas-Schafer sounding traveller. (For obtaining soundings rapidly from a ship under way).
Part of gear for Douglas-Schafer sounding traveller. (For obtaining soundings rapidly from a ship under way).