The first album by The Durutti Column originally came in the now legendary 'sandpaper sleeve'. This was a nod to situationism whereby keeping the record in your collection would physically damage your other records. Of course, the record could be fitted into an outer plastic sleeve and your other records would be safe. Sandpaper sleeve copies also came with a bonus flexidisc (by flexidisc kings Lyntone) Fact 14c entitled 'Testcard' and featuring two tracks written by Martin Hannett.
Of course, as with many other Factory releases, catalogue number duplication rears its head. The number Fact 14c was also the catalogue number for the boxed cassette edition of the album several years later.
more factory/peter saville info here