Photometer
1992.0004.001
Filter
1992.0004.002
Filter
1992.0004.003
Filter
1992.0004.004
Filter
1992.0004.005
Interface
1992.0004.006
Computer
1992.0004.007
Recorder
1992.0004.008
Cassette, tape
1992.0004.009
Cable
1992.0004.010