1970 and 1971 US proof sets with no "S"

My O my..... my first post just guessing at all the fun.
I did have a scientist, Tee he, ask me to ask the experts to tell him what temperature the cu is raised to by a strike at surface?
Claims if known there is enough impurities to determine true magnetic North on the coins. Funny to me. Yet, he claims the alignment would from be present to within 120 miles of strike of metal. where are blanks made as this would also be present in another position very strongly with the outer layer of the strike showing relationship angle of latitude.
Got me? I worked in Bell labs during the deployment of the internet, thanks for the entertainment. Can anyone answer this question?

 

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Geologists do that all the time with lava flows.

 

Sorry, I guess I should have said "any given non-mintmarked cent".

As to the temperature of a struck coin, I don't believe it rises much above 200 degrees F. Enough to burn your fingers, but not more than a slight second degree burn at most. I seriously doubt this would be enough to impress the earths magnetic field alignment into the coin.

 

For the headache??

 

I have a 1970 mint set with a nickel S mint in the Phl package

 

Photo????

 

I have pic just don't know how to post here????

 

See below it sez upload file click it ,it will ask you to choose file or picture . Select image and up load, before post reply hit full image

 

Perhaps he means a 'cent'?

 

That's normal. Philadelphia didn't strike nickels that year and San Francisco did. They put the S mint coin where the "P" mint one would have been.

And further clarification of a comment from back in 2013.

1965 and 66 business strike half dollars were struck at both Denver and San Francisco. The 1967's were only struck in Denver, so that would be a case of knowing where a non-mintmarked coin was struck.

 

no it is a nickel

 

the nickel in the Philadelphia mint package has a "S" mint mark

 

This is correct for 1970, there were no Philadelphia minted nickels for that year.

 

I have a 1971 proof set only one coin in the set has the S mint mark what does that mean

 

Aside from the 'necro' aspect, gottem picture Kimosabe?

 

I feel this is one of those talk but run and never come back member.We need pictures or it doesn't exist.