This is an NOS pair of vintage Sterling F5L  white porcelain top spark plugs with brass top screw on  terminal and crush ring.   Each plug has "F5L" on the top of the porcelain. These plugs have never been installed.  Perfect for the collector or for replacing missing, worn or damaged plugs.  See my eBay Store for more NOS spark plugs.  Payment is expected within 10 days of the close of the auction. We charge actual shipping only and are always glad to combine shipping on several auctions or you would be welcome to pick them up.  Thanks!