Well, it's a camshaft for an inline engine..... Looks to be missing the left-hand end, which would then give it six sets of cams.
Allison or Merlin engines would both have had 6-cylinder camshafts, for each half of the engine.
Sorry I can't be of any more help at the moment, I'll see if I can match it up.
post edited by ramc181 -
401st BG Association
401st BG Historical Society (UK)
Alconbury ARG/AIX Archive