6990 Monorail Transport System | LEGO Space Wiki | Fandom
LEGO on Twitter: "Let's take a trip back in time. ✌️ In the 80's and 90's, we released several Light & Sound System sets like this one from the Space theme (6990).
LEGO 6990 Monorail Transport System Instructions, Space
LEGO 6990 Monorail Transport System Set Parts Inventory and Instructions - LEGO Reference Guide