![](https://coimages.sciencemuseumgroup.org.uk/68/75/large_thumbnail_b630708.jpg)
Three canvas pipe sections, for the Harold Hume Piffard Aeroplane E.N.V. Aero-engine
![SMG00199341](https://coimages.sciencemuseumgroup.org.uk/404/366/medium_smg00199341.jpg)
Three pipe sections: rubber sheathed canvas 7/8” (32mm) interior diameter, unsigned, England, 1910-1911, for the Harold Hume Piffard Aeroplane E.N.V. Aero-engine type D (40hp), V8 cylinder, 1910