I just love Radio delete plates!! - Looks like you have a couple clock deletes also.
They are not all GM though - I have some of those also -
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top - mid fifties Dodge
2nd - excuse the tape - 63 Plymouth
3rd - early fifties Ford

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Top - Can't tell if that's a chrome one like this, if it's a - 56 Ford
2nd - not shown on yours - but my favorite - 57 Chevy
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