Transformers Vol 1 #48 (NM)

Part two of the Underbase Saga with the information and data on the long lost Autobot tapes revealing a secret mission that Optimus Prime and company undertook a long time ago in order to gain access to the Boltax Temple of Knowledge in "The Flames of Boltax." 

Issue also has profile pages on Hardhead, Brainstorm, Chromedome, Crosshairs and Searchlight Autobots.