Stamp printed by Switzerland, shows Surveyor with theodolite and topographical map, circa 1983 |
Vintage stamp printed in Germany shows Optical Instrument Type: Theodolite, 1810, a precision optical instrument for measuring angles |
A stamp printed in Australia shows images of a theodolite and an aneroid barometer, circa 1990 |
Марка: Surveyors with Theodolite (Британская антарктическая территория) (Scientific Work) Mi:GB-AT 23,Sn:GB-AT 23 |
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