I recently purchased a used Belgium specialized stamp catalog, and this "souvenir sheet" was tucked between the pages. It is printed on thin, glossy paper (like magazine paper), with no gum on the back.


If Google Translate is correct, the back inscription reads "can be used for postage." The bottom line includes the statement "Project not adopted (1998)." The Scott catalog includes a note regarding this souvenir sheet (and others like it), stating they have "no postal value" (I assume that means not valid for postage).

I'm interested in learning more about this item. It doesn't seem to me to be valid for postage, but I don't know for sure, based upon the conflicting statements. Can anybody shed some light on this item, and the others like it?
Thank you.
Regards, Robert
Edit: Replaced images to eliminate Photobucket watermarks.