I have this 1970 mint set with a 1970d quarter in the Philadelphia sleeve. Does that happen very often?
The S nickel was normally in the Philadelphia sleeve because Sam Francisco only made cents and five cents that year so no S mint sleeve, and Philadelphia DIDN'T make five cent pieces that year so it made sense to put the S mint coin into the P mint slot. As to the OP question, no it didn't happen a lot but they did happen occasionally. It would just be considered a packaging error, it isn't a mint error, Sets of this type are typically only worth a dollar or two more as a novelty.
This would indicate (at least to me) that the packaging of mint sets occurred in Philadelphia. In other words, San Francisco and Denver sent freshly-minted coins to Philly and then the sets were assembled there? So in this case, a D-mint quarter was mistakenly inserted into the P-mint quarter sleeve.
I think mint sets are coins that are picked from circulation. (Good examples) Any mm can be in there. This one has all 3, and I don't think the mints are shipping their coins to the other mints. Is the half dollar in there? 40% silver and low mintage. That would be the key coin in this set. These other AU coins to me are really only face value.
I'm just curious where you read that US Mint Sets (still in the OGP, or original government packaging) are picked from circulation and are AU? Because whoever wrote that is incorrect. Perhaps you misunderstood that the coins are meant for circulation (as in, business strikes vs. proof strikes, which aren't meant for circulation.) But it's not like the US Mint goes to a local bank to get some rolls of circulated coins for their mint sets...
What Michael K doesn’t know is that during 1968-1974 the Mint sets had coins from both Kint facilities and the San Francisco Assay Office. The S Mint coins were packaged with the Philadelphia coins in the sets.
But yes, it is abnormal for a 1970 D Quarter to be in the blue sleeve vs. the red sleeve (as a couple people have already mentioned.) I've seen lots of different varieties - usually a denomination substitution, like two dimes and no nickel. Kinda cool, but like they already mentioned not worth a sizable premium.
I have two 2000 mint sets that contain the state quarters in the set both have 2 of the same state quarters in the set. Conder101 and Ben are both correct in their post. Mint sets are made from uncirculated mint coins right from the Mint "not circulated coins." Nickels at times have had satin finished specimens not business strikes, depending on the year. 2005 mint set nickels were satin finish. And the premium for errors as such, is in fact only a few dollars over retail value,if any! As these are human error in packing not anything like a mis strike coin or platchets.
The half dollar in this set should be the 1970-S, As the tag coin says P & S mints. The Denver Quarter is the abnormal coin. And P did not make Halves for this year.
They made a 70-D half. The S was a proof. The nickel in this set is an S. I didn't say, I knew exactly what was going on with these mint sets. Just what I thought. I bought some in the 1980's and was very disappointed. Yes instead of circulation I should have said: Business strikes INTENDED for circulation. (Not including the 70-D half). But I never really found the mint sets to be that great in quality grades.
Correct, the only half in 70 as a business strike was the D. Only released in mint sets. None for circulation.
