Nikon AF 80-200mm

Just found that there are several versions of 80-200mm.

1. Original Version Nikon AF zoom Nikkor 80-200mm f/2.8s ED MK I (1988~1992)
2. Nikon AF zoom Nikkor 80-200mm f/2.8D ED MK II (1992~1996)
3. Nikon AF zoom Nikkor 80-200mm f/2.8D ED Dual Rings MK III (1996~1998)
4. Nikon AF-S zoom Nikkor 80-200mm f/2.8D IF-ED (1998~2006)
5. Nikon AF zoom Nikkor 80-200mm f/4.5~5.6D (1995~)

My friend's should be #2.
See more...
http://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/AFNikkor/index.htm