![](https://coimages.sciencemuseumgroup.org.uk/240/723/large_thumbnail_1930_0411__0001_.jpg)
Coils used as a standard of induction
- Made:
- Unattributed place
![Coils used as a standard of induction](https://coimages.sciencemuseumgroup.org.uk/371/730/small_thumbnail_smg00062581.jpg)
![Coils used as a standard of induction. Rayleigh Collection](https://coimages.sciencemuseumgroup.org.uk/240/727/small_thumbnail_1930_0413__0001_.jpg)
![Coils used as a standard of induction. Rayleigh Collection](https://coimages.sciencemuseumgroup.org.uk/240/728/small_thumbnail_1930_0413__0002_.jpg)
![Coils used as a standard of induction](https://coimages.sciencemuseumgroup.org.uk/53/353/small_thumbnail_1930_0413__0001_.jpg)
![Coils used as a standard of induction](https://coimages.sciencemuseumgroup.org.uk/53/354/small_thumbnail_1930_0413__0002_.jpg)
Coils used as a standard of induction
Many objects in Lord Rayleigh’s collection are annotated with a reference to the volume and page of his collected works where they are discussed.
Object 1930-413 has a handwritten label that includes reference to “II p 557” and a date, August 20th, 1886.