I might be able to help but i don't know when i'll be at my office next. I'm on a long term contract elsewhere so it may be a while.
I wanna say Maxtor - around 80 or 40 gig. But that's psuedo guess work. That bottom weblike pattern looks familar to me and I've got some old maxtor and seagate drives laying around my old office. So i'm guess that era (20-80gb). The only drives we had in-house at that time were seagate, maxtor, and a couple fujitsu.
I could very well be wrong since i'm going off memory, but that's what I recall.