
Remember the 1965-1967 cents had SMS, that were proof coins, but ones for collectors. They are fairly common. Not to be on the same level as the 1964 SMS coins. These are the rare ones. (Possibly less than 100 struck) You can see that on 1964 SMS that they were struck with fresh dies and they are all EDS coins. The others 1965-1967 SMS were created for collectors. (In the range of 2 million per year 1967 had the smallest number)