This is a fantastic rare find, totally un used from the 1960's, left in a time warp! Ideal for display or can be used, these are Lodge spark plugs made especially for vintage lawn mowers of the period.
Will fit
Ransomes,Webb, Atco, Greens, Suffolk, Royal Enfield, Qualcast and Villiers  and JAP engines.

The spark plugs are still packaged in their original wrapping