Singer Buttonhole attachment No 86662 plus Spartan attachment

Singer buttonhole plus Spartan attachments.  I don’t know how these work or fit onto the machine but there are some online tutorials.   Please look at the pictures carefully and if I can assist dont hesitate to ask any questions.   There are two instructions pamphlets for these. The Spartan one is really flimsy and falling apart.  These are in “as found” condition and I will be happy to post more photos if needed.  I will look at an offer.