The manuals from an old ST Discovery Pack, along with their original box:
Discovery Pack 1: Discover the Atari ST book
Discovery Pack 2: STOS manual
Discovery Pack 3: Hisoft Apps Manual
I don't think this box came with disks but if it did they are long gone.
Please note, because of the odd size of the box, postage will be a much higher percentage of the sale price than usual.