Dowding and Doll Universal Gear Hobber Type H7 Manual
Dowding and Doll H-7 Universal Gear Hobber: (also branded Do-All) Operating Manual. Includes a copy of the maker's detailed Technical Sales and Specification Catalogue.
Dowding and Doll H-7 Universal Gear Hobber: (also branded Do-All) Operating Manual. Includes a copy of the maker's detailed Technical Sales and Specification Catalogue.