Oil funnel

This oil funnel was acquired along with the Albatros wreckage parts and I assume that it was retrieved along with the other pieces. Oddly enough, a calibrated measuring cup marked 100 cc and "Johnsons of Hendon" also was mixed in with these items.  Johnsons made photographic chemicals and during the war supplied them to the RFC, the RNAS and other Government departments using photography. How this ended up in the cockpit of a German scout is anyone's guess, but possibly the pilot had down an observation aircraft and kept the cop as a souvenir.