I noticed recently that the commemorative coins for the Semiquincentennial program are being added to the Numista catalog in preparation of their release. There is a potential issue however with the Penny and Nickels being release however, as they are listed on the generic Penny and Nickel pages (see below) rather then having their own dedicated listing on Numista
It seems to me the the Semiquincentennial double date Penny and Nickel should have their own respective pages in the catalog for the following reasons:
1. While the penny design is the same (minus the double date), I would argue the Nickel is a slightly different design. On the regular Nickel issue, the word “Liberty” on the obverse is above the date, but on the Semiquincentennial Nickel the word “Liberty” is below the double date.


2. There is a series for the program that has been created in the catalog. Not having unique listings for the Penny and Nickel would mean they would not be able to be added to the series despite them being a part of it.
https://en.numista.com/catalogue/series.php?id=11931
3. Having the Semiquincentennial double date Penny and Nickel as part of the generic Penny and Nickel pages would result in their Type being incorrect, as both would be indicated as Standard Circulating, which is inaccurate. The Nickel should be marked as Circulating Commemorative, and the Penny, which is no longer circulating, should be listed as Non-circulating, or perhaps Collector coin per the US Mint website verbiage.
Thought it would be good to have this conversation now before the coins are released so that way any modifications are easier.
Tagging @cncote10
Cheers,
Tony