Seller: 62dodge413 (4,437) 100%, Location: Cresskill, New Jersey, Ships to: Americas, Europe, Asia, AU, Item: 173602787912 Up for auction is a 7/8” thread, used, M.C.D. spark plug with an unusual feature of having the ground electrode bottom threaded into the base of plug. I imagine this design was designed to replace the piece in case of damage, instead of buying a complete plug. Also it allowed for one to clean the electrode area more efficiently. Shipping to Canada $16.00, Australia / United Kingdom $25.00 **Please note that I always combine shipping costs on multiple items won. Allow me time after ALL my auctions are over for that day and the rate will be adjusted, an invoice will be sent. Thanks for your bidding.** Anyone wanting to learn more about antique spark plugs is invited to join the Spark Plug Collectors Of America through their website www.spcoa.net Please note if you are a winning bidder from other than USA, I will forward you an invoice for shipping charges after getting your mailing info. Also be advised of import duties, taxes and charges (typically collected upon delivery or pickup) are the buyer’s responsibility and are NOT included in the item price or shipping charges. Please check with your country’s customs office prior to bidding/buying to determine what these additional costs will be. I always mail out items to USA with USPS delivery confirmation number and email the winner with info.