Alien Avenger - LEGO set #6975-1 (Building Sets > Space > UFO)
LEGO 6975 Alien Avenger Set Parts Inventory and Instructions - LEGO Reference Guide
Found my old UFO set: 6975 in the attic. Forgot how awesome this set was! It was purchased in Germany sometime around the year 1998 and is still in perfect condition : r/lego
LEGO 6975 LARGE UFO Instructions, Space
LEGO 6975 Alien Avenger Set Parts Inventory and Instructions - LEGO Reference Guide
Vintage Lego System UFO 6975 Instructions ( Manual Only ) | eBay
Lego system UFO and car, number 6975, with 361 | GNC Antiques LLC