Posted 5 years ago
A few of my sparkplugs to show you.
Pic #1... there are six primer plugs in this photo. The plug in the center with the arm extending out to the left is a quick detachable plug. The owner would keep several "stingers" in the glove box, and when the plug fouled (as they often did in early autos), you turn the bayonet arm 90 deg. and pull out the dirty stinger and replace with a clean one. You can then go about your way without getting your clothing dirty.
Pic #2.... The plug in the center is a "Champion Harley Davidson" racing plug. You can also see the QD plug (quick detachable), to the left of the Harley Davidson plug.
Pic #3...(center of photo) shows a plug that, when fouled, you just flip the plug around to expose a clean plug
Pic #4... shows a number of fiber insulated plugs as well as a Splitdorf and Bethlehem plug along the bottom.
Last year, I had an auction with several hundred rare plugs for sale in tray lots of five to ten plugs offered by choice of each tray. To give you an example as to how desirable sparkplugs can be. One tray of five rare plugs, sold for a pick it out by the piece for $750 each, and the buyer took all five plugs on the tray.