Up for sale is the vintage Roco miniature Model, ( model No. 1405 ), HO scale plastic model replica of the Caterpillar Tractor with Pull-Scraper Pan.. The miniature HO 1:87 Scale plastic model is in good condition, not missing any parts, comes in original box. The miniature Caterpillar Earth Scraper has very good detail, measures 7" long. Very hard to find.