Seismograph part
1971.0229.001
Seismograph housing part
1971.0229.002
Magnet
1971.0229.003
Tripod
1971.0229.004
Stand
1971.0229.005
Recorder part
1971.0229.006
Disk
1971.0229.007
Seismograph part
1971.0229.008
Mirror
1971.0229.009
Seismograph part
1971.0229.010