The catalog states that the only date for the coin is 1826, but the very picture on the coin's page https://en.numista.com/catalogue/pieces22613.html
has 1841 for the date. I coin I have is dated 1841 as well.
The 1826 is KM#A34 and the 1841 is KM#34a. So it looks as if the photo posted in the Numista Catalog is for the 34a, but the rest of the entry is correct for the KM#A34.