The Caterpillar 308C CR Excavator in 1:50th scale was released by Norscot in 2012 with #55129
If you are in the possession of the original hardcopy spec sheets, brochures or photos about the 1:1 Caterpillar 308C CR Mini Excavator I would be happy if you send your response to info@minimovers.nl
Caterpillar 308C CR Excavator Specs AEHQ5469-01 (11-07)(PDF)