Photographs showing phonic motor, signal forming unit and send relay unit
- Made:
- 1952 in Herstmonceux
Three mounted photographs showing phonic motor, signal forming unit and send relay units
Details
- Category:
- Time Measurement
- Object Number:
- 1952-188
- Measurements:
-
overall: 370 mm x 390 mm
- type:
- photograph
- credit:
- Royal Greenwich Observatory, Herstmonceux
