Huge difference in quality.
All you need to look at is the Delco logo.
I have a background in gun and coin collecting so this is elementary level to me.
All depends what level of detail you seek.
If that is indeed a "NOS" cap it is much later than the period one I posted.
They are not expensive or hard to find so it should be no big deal.
You asked.
Last edited by daveg; 11-26-2025 at 01:06 AM.
Reason: clarity
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