Recording Charts for meteorological instruments. I don't know what most of these charts are for.
Up to: Meteorological Instruments
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Thermo-hygrograph chart OTA MR-1? chart |
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Meteorograph Chart OTA R140 / TE-3-7 meteorograph chart |
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Rain Gauge charts OTA CR-3 Rain Gauge charts |
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OTA RD-1 charts I don't know what these are for |
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82Tau 82Tau charts |