How to tell if its aluminum or just plated

I hadn't either when I did the transcription, so I googled it and learned what it meant.

I'm not aware of any survivors, and there is no reference to them in Pollock's book on patterns.

 

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Not in Judd either. If one surfaced, it would be a six-figure coin. Cal

 

Looking over the letters, there is no definite statement that the blanks were run through the presses. There is a strong implication though because the mint director asks the Philly mint super for 300 samples. If 300 , maybe 30,000, had been coined, and some sent to the director and perhaps some to GE, seems like a few would have survived ... but maybe not.

Cal

 

Yes they were real but for 1974. 1 million were struck then destroyed except 12 each.

But I know what you meant.

 

When checking out questionable items a scale is cheaper, rare earth magnet, calipers and then getting another option from a metal detector with a good meter usually uncovers all the answers.