I'm not sure what the OEM version would have come with, but the retail version included several manuals, including a very thick main manual. Microsoft did ship thick manuals with OEM products in the 1990s (my IBM PS/1 came with Works 2.0, and a decent-sized manual was included with that; I also have a thick DOS 6 manual from the same computer). Smaller, less-informative Microsoft OEM manuals started to come about with Windows 95.