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ORIGINAL **ZR-1 U.S.S. SHENANDOAH AIRSHIP SIZE AND STYLE SPARK PLUG.(May have been used on one of the airship U.S.S. SHENANDOAHPackard 1A-1551 engines.)
This spark plug fits the one of the original Packard 1A -1551 custom engines that was used on the airship U.S.S. SHENANDOAH.
The spark plug that is used on the USS ShenandoahPackard 1A -1551 engineis marked on the lower cylinder of the plug: *B.G.1XAGAP.015\" PATENT MARCH 14,1922. (MUSEUM RESEARCHED SPECIFICATIONS)
The spark plug I am offering in this listing is marked on the lower cylinder of our plug; *B.G. MODEL1XA .015\" GAP PAT.-SEPT.6.19.21- MAR.14.1922 - OTHERS PENDING
*The B.G. Corporation was founded circa 1918 in New York by Charles Brewster andArthur Goldsmith andspecialized in aircraft engine spark plugs.
**U.S.S. Shenandoah was the first of four United States Navy rigid airships. It was constructed during 1922–23 at Lakehurst Naval Air Station, and first flew in September 1923.Shenandoahwas torn apart in asquall lineover Ohio in September 1925.
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