| Shell Liner / Shell Plate — Tube inner liner (1938 site) | Inside the grinding shell; the original text is lined throughout, the end split is not listed |
| Grinding Rods / Steel Rods — Grinding rod (1938 site) | Inside the grinding shell |
| Shell Liner / Shell Plate — Single wave shell liner (Lakefield test) | The inner wall of the cylinder; six pieces, each piece is 25mm thick, and the central single wave is about 25mm high |
| Grinding Rods / Steel Rods — Grinding rod (Lakefield test) | Inside the grinding shell, original diameter 12 to 76mm |
| Transmission motor (Lakefield test) | Rod mill external drive, 7.5hp |
| Pulley and V-belt (Lakefield test) | Motor to gear transmission |
| Pinion (Lakefield test) | gear meshing transmission |
| girth gear (Lakefield test) | Mill external drive |
| Grand Junction single scoop feeder | 2×4ft rod mill feeding section; scoop radius 21in |
| Grand Junction Rod Mill End | Both ends of the cylinder are connected to the hollow shaft support |
| Grand Junction Rod Mill Hollow Shaft | Support at both ends of cylinder |
| Grand Junction hollow shaft bearing | Hollow shaft support at both ends |
| Grand Junction spur gear | Rod mill drive; number of teeth/interface not specified |
| Grand Junction drive pinion | Drive matched with spur gear |
| Shell Liner / Shell Plate — Grand Junction shell liner | Inner wall of rod mill shell |
| Head Liner / End Liner — Grand Junction end liner | Internal surface of rod mill end |
| Grand Junction liner bolt | Fixed rod mill liner; hole-by-hole position not specified |