Lichen (78 = 80)

This pair of edits to the wikipedia article on Lichen probably shows another example of shifting Rogers IPs:

(diff)	21:12, 4 August 2004	66.185.84.78
(diff)	21:12, 4 August 2004	66.185.84.80

The two edits were made within the same minute.  The earlier edit (the second one listed here) was simple vandalism -- "Mark likes lichen" -- and the second edit deleted it, apparently after changing his mind.