Two seismograms on mount:- One by Mintrop Seismograph. One by latest electrical seismograph
Two seismograms on mount:- One by Mintrop Seismograph. One by latest electrical seismograph.
Details
- Category:
- Ledger Items
- Object Number:
- 1931-767
- type:
- seismograph
- credit:
- Geophysical Co. Ltd.