Plugged the last photo in chatgpt for some analysis and ... see below. wow.
What you're looking at appears to be a
very heavily rusted old spark plug, partially embedded in some corroded material—possibly engine debris or soil. The ceramic insulator has the marking
"TT8", which is a clue.
Here's what I can tell you:
Spark Plug Marking: "TT8"
- This marking style is consistent with Champion spark plugs, which used codes like "J-8", "W-18", "TT-8", etc.
- The "TT8" plug is not standard today but was used historically, often found in pre-1950s engines, and especially Ford V8 flatheads and similar engines from the 1930s–40s.
1935 Ford Coupe Compatibility
- 1935 Ford coupes (Model 48) used flathead V8 engines.
- These engines did use Champion plugs similar to the one you’ve found.
- So: this plug could plausibly have come from a 1935 Ford V8 engine, especially if it was sitting in an environment where it rusted in place over many decades.
Conclusion:
- This item could plausibly be from a 1935 Ford V8 engine or something in that era.
- It is not specific to a Model A (which predates 1932 and had a 4-cylinder engine), but it may well fit a Model 48 coupe from 1935, especially if that coupe had the standard flathead V8.