There are two similar parts, but they are mirrored. For jam-filled cookies, you need to make the bottom and the top separately. Be careful to cut the lens into the top part - all cameras have a trigger on the right side. On my photos, I have it the wrong way ;).
Recipe: https://www.cooklikeczechs.com/linecke-cukrovi-czech-linzer-christmas-cookies/
The author marked this model as their own original creation.