Gab es früher wirklich Erweiterungssets für die Monorail?: LEGO® 6921 von 1988 [Review] - YouTube
LEGO 6921 Monorail Accessory Track Set 80s Space or Town New Image Number 2
LEGO 6921 Space Set Space Monorail Train Accessory Track WithInstructions Vintage
LEGO 6921 Monorail Accessory Track Set 80s Space or Town New Image Number 3
A Lego "Monorail Transport System" 6990 and extra tracks 6921, Denmark, 1987. - Bukowskis
Lego 6990 Space Monorail plus 6921 Monorail expansion track 99% complete - YouTube
LEGO Town: Monorail Accessory Track (6347) for sale online | eBay
bricklink 6990
Lego Space Monorail Accessory Track I 6921 I neu in OVP I Siegel in Hessen - Rodgau | Lego & Duplo günstig kaufen, gebraucht oder neu | eBay Kleinanzeigen ist jetzt Kleinanzeigen
LEGO 6921 Monorail Accessory Track Instructions, Space
LEGO 6921 Space Set Space Monorail Train Accessory Track WithInstructions Vintage
VINTAGE LEGO #6990, 6921 SPACE MONORAIL TRANSPORT SYSTEM WITH INSTRUCTIONS | #431804765
A Lego "Monorail Transport System" 6990 and extra tracks 6921, Denmark, 1987. - Bukowskis