My New Acquisitions: 2 Experimental Proof Planchets

I have two new and super cool certified unstruck planchets to add to my rare unstruck blank & planchet collection.

One is an "experimental upset" clad proof Eisenhower planchet of which there are roughly ten known. ("Experimental Upset" means they were testing different rim styles)



The second is an "experimental finish" proof Jefferson Nickel planchet of which there are also only about 10 known.



Both were discovered as part of a hoard found at the San Francisco Mint some years ago. Experimental pieces are incredibly scarce, and I am lucky to have found and acquired these for $450 for the pair. Enjoy!

 

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Really nice Acquisitions!
Thanks for sharing!

 

Nice thanks for sharing.
Dave

 

Is there a year of manufacture for these Errors? Can you post a link to read about these Errors? They sound quite interesting.

 

Wow!!!!!!!!!!!!!!!!!!!

 

I would love to know the story of this Hoard myself. I have been searching but can't find anything about who found them, when they were discovered, where they were found inside the San Fran Mint, why they were hidden after all these years, what was supposed to be done with them, why the Mint never destroyed them, and how they wound up in collectors' hands, etc.

Anyone know the story of the San Francisco Hoard?

 

https://mikebyers.com/ike-proof-clad-planchet-set.html
https://minterrornews.com/discoveries-3-24-16-proof-silver-ike-planchets.html
Answered all my questions.

 

The San Francisco Hoard was my group of coins
and mostly blanks and planchets that I purchased
from the son of a San Francisco Mint employee from the 1970's.

NGC did a great job of figuring out and labeling them
for this 'hoard'.

 

Interesting finds, paddyman! I've never heard of the "San Francisco Hoard".

 

If the mint produces an experimental planchet as a specimen and doesn't intend to strike it, how is that an error? Considering their source, why are these not simply specimens? I'm not seeing an "error" here that would justify slabbing it as an error.

 

Blanks and Planchets that get out of the Mint
are considered Errors in the general sense of the
word - they're 'errors' in that they were not struck
as coins, and yet got out of the Mint.

I agree, in and of themselves, the blanks and planchets
aren't errors, but they are collected as such by most
error collectors.

 

Thank you, Fred. I always wondered what their story was. Appreciate it!

Now, the fact that the son had them, was that because the dad I guess "snuck" them out of the Mint?

Under Mint protocol, should these have been destroyed?

 

I mean generally speaking it is an error when they get out with the coinage and are not struck. That's not really what I'm talking about.

I'm only talking about the scenario where an experimental planchet is created as a specimen without the intent to ever strike it. In other words: a planchet and finished product as intended. If one left the mint through an official channel and not with the coinage, how can that planchet be an error?

 

It's an error as in 'error' in quotes.

I explained above how Blanks and Planchets
are considered 'errors'.

 

I see. Just the convention then. Thanks for your answer. I was hoping for something more a long the lines of MS vs SP.

 

Actually, I would assume that if the Mint made
an Experimental Planchet, they DID intend on
striking a coin on it - to see how it strikes up,
how the raised rim is formed, etc.

 

You may want to reword this statement to"found at an Mint Employee's Home".

 

Paddyman??? Damn. He's so good he gets credit when it's not even his post!

 

So sorry JCro! I was looking at about 5 diff. posts at once. Still, nice finds!

 

Just teasin' its all good