| Coplestone | H. W. | Bunbury | Indian 5 H.P. Motorcycle | By 1 | Bunbury Municipality | 1915 |
| Copley | B. | Forrest Street | Overland 20 H.P. | PG 2 | Peppermint Grove Road Board | 1915 |
| Copley | B. | Forrest Street | Overland 20 H.P. | PG 2 | Peppermint Grove Road Board | 1916 |
| Copley | B. | Forrest Street | Overlander 10 H.P. | PG ● 2 | Peppermint Grove Road Board | 1917-18 |
| Copley | B. | C/o Anch. Butch. Ltd., Howard Street | Buick 31 H.P. | P 835 | Perth Municipality | 1917-18 |
| Copley | B. | Forrest Street | Overland 10 H.P. | PG 2 | Peppermint Grove Road Board | 1919 |
| Copley | B. | Forrest Street, Cottesloe | Ford Wagon | 6138 | Metro Private Car | 1924-25 |
| Copley | B. | Mingenew | Ford | MI ● 14 | Mingenew Road Board | 1924-25 |
| Copley | B. | Forrest Street, Cottesloe | Ford Wagon | 6138 | Metro Private Car | 1925-26 |
| Copley | B. | Forrest Street, Cottesloe | Buick | 278 | Metro Private Car | 1926-27 |
| Copley | B. | Forrest Street, Cottesloe | Buick | 274 | Metro Private Car | 1926-27 |
| Copley | B. | Forrest Street, Cottesloe | Buick | 278 | Metro Private Car | 1927-28 |
| Copley | B. (Junior) | Mingenew | Ford | MI ● 14 | Mingenew Road Board | 1925-26 |
| Copley | B. Junior | Mingenew | Buick | MI ● 140 | Mingenew Road Board | 1927-28 |
| Copley | Ben | Forrest Street, Cottesloe | Wolseley | 278 | Metro Private Car | 1922-23 |
| Copley | Ben | Howard Street, Perth | Ford | 4710 | Metro Private Car | 1923-24 |
| Copley | Ben. Jnr | Mingenew | Wolseley | MI ● 14 | Mingenew Road Board | 1926-27 |
| Copley | Benjamin | Forrest Street, Cottesloe | Wolseley | 278 | Metro Private Car | 1923-24 |
| Copley | Benjamin | Forrest Street, Cottesloe | Wolseley | 278 | Metro Private Car | 1925-26 |
| Copley | Benjamin | Forrest Street, Cottesloe | Wolsely | 278 | Metro Private Car | 1926-27 |
| Copley | C. | - | Ford | Y 9 | York Municipality | 1916 |
| Copley | C. | Boyanup | Chevrolet | CP ● 10 | Capel Road Board | 1927-28 |
| Copley | C. J. | Forrest Street, Cottesloe | Studebaker | 6093 | Metro Private Car | 1926-27 |
| Copley | C. J. | Forrest Street, Cottesloe | Studebaker | 6093 | Metro Private Car | 1927-28 |
| Copley | C. W. | Boyanup | Chevrolet | CP ● 10 | Capel Road Board | 1924-25 |
| Copley | C. W. | Boyanup | Chevrolet | CP ● 10 | Capel Road Board | 1925-26 |
| Copley | C. W. | Boyanup | Chevrolet | CP ● 10 | Capel Road Board | 1926-27 |
| Copley | C. W. H. | Boyanup | Chevrolet | CP 10 | Capel Road Board | 1923 - 1924 |
| Copley | J. J. | 831 Beaufort Street, Maylands | Austin | 14029 | Metro Private Car | 1926-27 |
| Copley | J. J. | 831 Beaufort Street, Maylands | Austin | 14029 | Metro Private Car | 1927-28 |
| Copley | O. J. | Forrest Street | Rudge 2¾ H.P. Motorcycle | PG ● 6 | Peppermint Grove Road Board | 1917-18 |
| Copley | O. J. | Forrest Street | Rudge 2¾ H.P. Motorcycle | PG ● 6 | Peppermint Grove Road Board | 1919 |
| Copley | O. J. | Forrest Street, Cottesloe | Maxwell | 6093 | Metro Private Car | 1924-25 |
| Copley | O. J. | Forrest Street, Cottesloe | Maxwell | 6093 | Metro Private Car | 1925-26 |
| Copley | Oscar. J. | Forrest Street, Cottesloe Beach | Excelsior | 1347 | Metro Motorcycle | 1922-23 |
| Copley | Q. J. | 9 Forrest Street, Cottesloe | Studebaker | 15804 | Metro Private Car | 1927-28 |
| Copley | W. W. | 10 Prowse Street, West Perth | Whippet | 1872 | Metro Private Car | 1927-28 |
| Coppen | J. | Cottesloe Stores Cottesloe Beach | Ford | 4094 | Metro Private Car | 1924-25 |
| Copper Sep. Ltd | - | Saint George's Terrace, Perth | Hupmobile | 2462 | Metro Private Car | 1922-23 |
| Copper Separation Co Ltd | - | Saint George's Terrace, Perth | Studebaker | 4436 | Metro Private Car | 1923-24 |
| Copper Separation Co Ltd | - | Saint George's Terrace, Perth | Studebaker | 4436 | Metro Private Car | 1924-25 |
| Copper Separation Ltd | - | 10 Surrey Chambers, Perth | Hupmobile | 2462 | Metro Private Car | 1923-24 |
| Copper Separation Ltd | - | Kundip | Studebaker | PR ● 10 | Phillips River Road Board | 1925-26 |
| Copper Separation Ltd | _ | Kundip | Ford Wagon | PR ● 12 | Phillips River Road Board | 1925-26 |
| Copper Seperation Co Ltd | - | Saint George's Terrace | Studebaker | 4436 | Metro Private Car | 1925-26 |
| Copperwaite | H. | Petra Street, Palmyra | Monotrix 7 H.P. | MV 7 | Melville Road Board | 1919 |
| Coppin | B. W. | 22 East Street, East Guildford | Buick | 2695 | Metro Private Car | 1924-25 |
| Coppin | C. | East Street, Guildford | Dodge 20 H.P. | G 24 | Guildford Municpality | 1919 |
| Coppin | C. W. | 47 Colin Street | Ford 20 H.P. | P 270 | Perth Municipality | 1915 |
| Coppin | C. W. | East Street, Guildford | Dodge | G 24 | Guildford Municipality | 1916 |
