GW used to publish collector's guides, and after a bit of ebaying I did manage to track down their last Skaven one published in 2006. Unfortunately, to be frank, it was a bit of a disappointment. I really was expecting something much more comprehensive, instead it presented pictures of some new (at the time) and "classic" Skaven, but nothing close to the sort of resource an OCD collector would want. At the very least there were a few pretty pictures of conversions and dioramas.
Instead my go-to resource has been the online Skaven Metal Model Collector's Database posted by one "goatfarmer03" to the UnderEmpire and Warseer forums in 2007. Goatfarmer did an amazing amount of work, but the project was left uncompleted and while a great start, after a time one begins to notice the absences and inaccuracies.
Its for that reason that this weekend I pulled up on the tabs of my computer Sololegends.com, unearthed my Skaven themed back issues of White Dwarf, and went about the task of creating an updated database. What I present to you now is a first draft, covering everything from Goodwin's original 22 up to just before the current line (but including the limited edition 2011 Gamesday Warlord). Scaring up and editing suitable individual pics was about 75% of the work (and some are less than optimal but the best I had access to; not that I think a high resolution closeup of the Resurrection Gutter Runner would make it look any better). After about 1999, dating the models became an issue. Goatfarmer simply gave up on dates at some point post Goodwin, but I think I managed to come reasonably close based on my research.
However it's not perfect, so I offer it here to you today to 1) provide the resource I always wished existed, and 2) to ask for anyone's help in revising any mistakes or omissions. Enjoy: