Hard Disk Drive Seagate ST15150N with a fresh installation of NeXTSTEP 3.3 (user + dev + all patches) pulled from a working NeXTstation.
Now on Ebay, happy bidding!
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=290279998487