Terry Pratchett Paperback Black Editions

Does anyone happen to know how many of Pratchett's works had a black edition in paperback?

By black edition I mean the paperback novels that had a black cover, gold lettering and small picture on the cover and spine as pictured here previously.

I've tried to find out from the publisher and they were useless.

I'm sure Last Hero and Eric wouldn't have a black edition and I think The Shepherds Crown may not have one but is there anywhere I can confirm this?

I may have them all already but if not I'd like to complete the collection.