Metal fire extinguisher nozzle used during Skylab crew training, 4.75 x 1.75, unflown, with small wire tether and sliding nut engraved with part numbers: "Crawford-Pat'd-Swagelok-316." Includes three small washers. In fine condition. Accompanied by a signed certificate of authenticity from retired NASA Subsystems Manager Robert Stuckey, in full: "When launched, the Skylab Module carried several Fire Extinguishers similar to those carried in the Apollo Command Module. The only difference was a two-piece rigid nozzle in place of the single flexible nozzle flown in the Apollo Command Module. The flown extinguishers were destroyed during reentry of the Skylab Module. Enclosed is an unflown Skylab Fire Extinguisher Nozzle used during Crew Training."
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