There were threecompanies that made this vehicle
1. 1904-5. Bosch, Zulstra & Rupp, Arnhem (NL) assembled a snall number
2. 1905-09. GB. New Leader Cars Ltd, Aspley, Nottingham made several models
3. 1905-12. Leader Mfg Co, Knightstown, Ind. Made 2 cyl units with planetry engines and single chain drive. Later were 4 cyl with sliding gear transmission.