Photograph (Cyanotype) of a Round Vibration Tachometer, by Elliott Brothers, 1915
|Inventory Number:|| 11976|
|Object Type:|| |
|Brief Description:||Cyanotype from a glass negative of an Elliott vibration tachometer (Frahm's patent). Vertical format. Same photo as 11977, but annotated on front.|
|Primary Inscriptions:||Intrinsic negative number: 'N.932'.
Annotated with dimensions and weight.|
|Provenance:||Presented by the Marconi Corporation in 2003. Part of the Elliott Archive.|
|Collection Group:||Elliott Archive|
There are no associated narratives.