112 years of the National Geographic on 32 discs covering the period from 1888 to 2000.  Amazing photographs and interesting articles.  I bought this new but have only viewed the discs in the first and last set so the other 2 sets are still sealed.  Discs are therefore in excellent condition.  However, box is really quite tatty from storage.

196,000+ pages
185,000+ photographs and illustrations
9,500+ articles
1,285 issues
100+ years of original classic ads