Now here's a real treat -- courtesy of Jason "Textfiles" Scott and the Get Lamp documentary project, we have the manual for the PDP-11 release of Zork I. The PDP-11 release predates even the Personal Software TRS-80 edition. The manual this PDF was created from was personally autographed by Mark Blank, Joel Berez and Dave Lebling. Purportedly, less than 100 of the PDP-11 release were sold.