Strømmen type B1 Prototype Norway '1929Produced in a single copy
Strømmen type B6 Prototype Norway '1935Produced in a single copy
Strømmen type B7 trolleybuss Norway '1939Produced in a single copy
Strømmen trolleybuss prototype Norway '1945Produced in a single copy
![Strømmen type B1 Prototype [Norway] '1929](https://s3.wheelsage.org/format/picture/picture-thumb-medium/s/strommen/type_b1_prototype/strommen_type_b1_prototype.avif "Strømmen type B1 Prototype [Norway] '1929")
![Strømmen type B6 Prototype [Norway] '1935](https://s3.wheelsage.org/format/picture/picture-thumb-medium/s/strommen/type_b6_prototype/strommen_type_b6_prototype.avif "Strømmen type B6 Prototype [Norway] '1935")
![Strømmen type B6 Prototype [Norway] '1935](https://s3.wheelsage.org/format/picture/picture-thumb-medium/s/strommen/type_b6_prototype/strommen_type_b6_prototype_3.avif "Strømmen type B6 Prototype [Norway] '1935")
![Strømmen type B7 trolleybuss [Norway] '1939](https://s3.wheelsage.org/format/picture/picture-thumb-medium/s/strommen/type_b7_trolleybuss/strommen_type_b7_trolleybuss.avif "Strømmen type B7 trolleybuss [Norway] '1939")
![Strømmen trolleybuss prototype [Norway] '1945](https://s3.wheelsage.org/format/picture/picture-thumb-medium/s/strommen/trolleybuss_prototype/strommen_trolleybuss_prototype.avif "Strømmen trolleybuss prototype [Norway] '1945")