What can I learn about a 1970-s error Quarter. Printed over Canadian stock. Something will SHOW through on back side. Very high value/very rare. Is this genuine? Past 11 months I've been looking.
I think that this particular error had some inside 'help'. Just my opinion, but you have to ask: What's a 29 year old foreign coin doing at the mint? Since I believe it was 'helped' on the inside -- I feel certain it had some help getting out the back door.
You can keep searching, no harm in that, but I doubt you'll ever find one.
There is only one example of the coin you are referring to. It is an "assisted" error, meaning that a mint worker intentionally overstruck an old Canadian quarter with a US quarter. There is no point in looking for one, it is a unicorn.
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