Green glass spark plugs?

[Dave in Waukegan]

I picked up my professors housecleaning and came up with a spark plug with green glass instead of porcelain.
What car would this be from?

 

[Skadman4]

That my friend is a Splitdorf spark plug and was used in model T Fords as an alternative to their Champion X brand that was more commonly used. There are several variations to this brand. Check out the links below as well as a couple of screenshots I took when looking this up.
Pretty cool find and not something I've seen many of before

Coollectors - The Collectors Free Marketplace & Community

A free online marketplace and community for collectors where they can buy, exchange and sell various collectible items like stamps, cards and toys.

www.coollectors.com

Model T Ford Forum: Different plugs: A failed experiment

Sent from my SM-S260DL using Tapatalk

 

[sandchip]

Cool. Never heard of 'em.