An Apollo Lunar Module cabin fan filter for cabin air recalculation as part of the Lunar Module Environmental Control System, 17 x 10 x 8, signed on the top of the duct in black felt tip, “Charlie Duke, Apollo 16 LMP.” Several part numbers and other information is stenciled on the top in red, including: “LSC 330-154-1,” “LM Cabin Fan Filter,” “American Air Filter Co,” “S/N 008,” “GAC U/N 108,” “Sep 16 1970,” and “Level C.” In fine condition, with scattered soiling.
