First of all, there are currently four active US Mints. * Philadelphia * Denver * San Francisco * West Point , but it only makes platinum, gold and silver coins. There were more, Carson City being a famous one. The basic reasons is that there isn't a need for them. The ones currently in operation are able to handle the quantities needed. Security is tight, particularly at West Point.
The 3 US Mints operating in 1972 were the Philadelphia, Pennsylvania mint, the Denver,Colorado mint and the San Francisco, California mint.
Currently, there are 4 operating mints in the US.
There are only 4 active mints today, in Philadelphia, Denver, San Francisco, and West Point. In the past, there were also mints in Carson City and New Orleans.
In the history of the US there have been 8 mints. Today there are 4 in use.
The 1944 Mercury dime was issued from all three US Mints.
Yes, buffalo nickels were minted in Philadelphia, Denver, and San Francisco, but not at all three every year.
Only one, the Morgan Dollar. There were three different mintmarks for the mints in Philadelphia (no mark), San Francisco (S), and New Orleans (O).
Printed in mints.
The complete 1972 US mint set contains 3 cents, one for each of the 3 mints. If you have only 2 cents then you do not have the complete set.
There are currently four active US Mints, not 3: Philadelphia, Denver, San Francisco, and West Point. Philadelphia and Denver are the 2 primary mints, because they make all circulating coins. San Francisco makes proof and some other collectors' coins, while West Point makes platinum, gold and silver coins.
There are currnetly four US mints in operation. The Philadelphia, Denver, San Fransisco and West point mints. One other mint in operation is located in the Philippines, but does not produce American currnecy.
Nothing in particular. They were regular-issue coins struck at all three then-operating mints. 1927 San Francisco cents are less common but are still worth only about $10 in uncirculated condition.