The Sperry T-1 Bombsight was the US adapted and built version of the RAF Mk XIV bombsight (which was used on Lancasters, etc). I believe the T-1 was installed on Lend-Lease B-24 Liberators that the US provided the RAF as the Norden Bombsight was too sensitive to be provided even to Allies. I...
It appears to be one of the drive motors and bellows driving the directional clutches from a T-1 Bombsight computer. See the part circled in red in the photo below.