Interesting 1962 Proof Set

I bought a lot of sealed proof sets in an online estate sale. Most of them were rather ordinary, and I sold all but two of them. This one was quite attractive to me, because of the Cellophane toning on the Franklin.

 

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Nice! So are you leaving it in the cello for more toning or are you gonna be pulling it out soon?

 

I wonder why the half toned, but the quarter and dime didn't? Think there may be a tiny pinhole in that segment?

 

Nope. No holes. The proof set was sealed in the envelope. This happens reasonably often. The nickel is also toned, but less so. Cellophane toning is common in late 1950s-1960s proof sets.

 

The size of a germ?

 

If so, then it is natural toning.

 

nice toning/ common on proof sets form the 50's and 60's but this is better.

 

If we can clone that toning germ we'll all be rich!! -( maniacal laughing and clawing at air )

 

Besides the "pin hole" possibility, I see a second possibility.
During the sealing process a small piece of something got caught up in the process.
That "small piece of something" reacted with the coining metal.

 

Are you suggesting that it is artificially toned? In sealed cellophane, inside a sealed mint envelope?

 

Apparently you do not know GDJMSP; I do not think he was impling that at all.

 

I have known Doug for 11 years. I was just asking if he thought it was AT. He and I have debated authenticity of toning for over a decade.

 

GDJMSP, larger coin, larger bubble seal. Could more dust be a possible cause? Thanks in advance.

 

This has happened to quite a few 1962 proof sets. I wonder if something was done differently to the coins this year, rinse or different brand of cello?

 

To answer the previous poster, I think I don’t want it to sit in the bag much longer, and possibly turn blackish. It is a high grade proof, probably a 67 or 68, so, I am going to send in the whole proof set to NGC, and just have the Franklin slabbed (possibly the Jefferson also).

 

This past week I learned something new, which could be somewhat related to the toning question posted above. I believe I read it in 'A Guide Book of Franklin & Kennedy Half Dollars' by Rick Tomaska, but I can't seem to find the paragraph now that I'm looking for it.

Essentially, it was talking about Franklin proof sets and that at one point in 70s/80s, it wasn't all too uncommon for folks to find the "best" proof sets with cameo coins, cut em open, and then repurpose the original mint packaging with other, authentic (albeit, non-cameo) proof coins. I am not suggesting that this happened here, however, to answer the question "how can two coins in the same packaging tone so differently," it is hypothetically possible that this could've occurred. The passage went on to say that if you place a US mint-sealed proof set next to a resealed set, you should be able to identify the minute difference due to the sealing pattern in the cellophane.

 

I have seen proof sets that were repurposed like that. It is pretty obvious, as one can’t match the sealing without it looking obvious.