Sorry Alan, check again.
The actual title of the page has always been "The Stephen King Collectibles Catalog" the wiki folder entry has only recently been re-titled in an early attempt to do this work.
The list DOES contain Gift and unsigned editions, currently there are no other specific pages for these. (Other than a temp new page that was added in anticipation of this work)
There is one list that contains only S/L but does so by chronological order however this list does not link to the individual books.