OLD SHIPS WHEEL BAROMETER - TESTED - GWO

1921 PRINT ~ SPECTRO HELIOGRAPH REVERSE SPECTROGRAPH QUARTZ

1921 PRINT ~ SPECTROSCOPE ASTRONOMICAL SOLAR PROMINENCE SPHEROMETER

1921 PRINT ~ STAR GLOBE PAGET REVERSE STEREOSCOPE

1921 PRINT ~ STATION POINTER XY & ADMOIRALTY PATTERN REVERSE DISTANCE FINDER

aneroid barometer

1921 PRINT ~ SUNDIAL EQUATORIAL SUNSHINE RECORDER REVERSE SUBMARINE SENTRY

1921 PRINT ~ TELESCOPE NAVAL SIGNALLING OFFICER OF WATCH REVERSE ALTAZIMUTH

BAROMETER SPARES - ENAMELLED SCALE / FACE PLATE

1921 PRINT ~ THEODOLETTE REVERSE TELESCOPE EQUATORIAL

1921 PRINT ~ THEODOLITE MICROMETER REVERSE TRANSIT GENERAL SURVEYING

1921 PRINT ~ THEODOLITE RECORDING REVERSE THEODOLITE PHOTO

1921 PRINT ~ THERMOMETER SOLAR RADIATION CLINICAL WINDOW REVERSE THERMOGRAPH

Rare Original 1960's BGM (W. German) Weather Station: Barometer Hygrometer etc

600x microscope precision tested optics vintage