Tape Chronograph, Driven by Electric Motor, 1870-1900
- maker:
- Thomas Mercer
Two-pen tape chronograph, driven by self-starting electric motor, 1870-1900. The time is recorded on the tape, which is drawn past two pens using two rollers that are driven by al electric motor.
Details
- Category:
- Time Measurement
- Object Number:
- 1933-169
- Materials:
- moving tape: paper, recording pens: metal and contents of small vessel: ink
- Measurements:
-
overall: 250 mm x 500 mm x 250 mm,
- type:
- chronograph
- credit:
- Messrs. Thomas Mercer
