Buy Hydraulic engineering / Dams
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Monuments of water management - Germany / German Democratic Republic 1986 - 70 Pfennig
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Monuments of water management - Germany / German Democratic Republic 1986 Set
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Congress of the big dams - Switzerland 1985 - 80 Rappen
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Commemorative stamp series - Germany / German Democratic Republic 1973 - 30 Pfennig
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25 years - Austria / II. Republic of Austria 1972 - 4 Shilling
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Nationalised electricity industry - Austria / II. Republic of Austria 1972 Set
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After 1945 built dams - Germany / German Democratic Republic 1968 - 10 Pfennig
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After 1945 built dams - Germany / German Democratic Republic 1968 - 20 Pfennig
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After 1945 built dams - Germany / German Democratic Republic 1968 - 5 Pfennig
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After 1945 built dams - Germany / German Democratic Republic 1968 - 15 Pfennig
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After 1945 built dams - Germany / German Democratic Republic 1968 Set
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50th anniversary of the October Revolution in Russia - Germany / German Democratic Republic 1967 - 10 Pfennig
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15 years - Austria / II. Republic of Austria 1962 - 1.80 Shilling
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15 years - Austria / II. Republic of Austria 1962 - 1.50 Shilling
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15 years - Austria / II. Republic of Austria 1962 - 3 Shilling
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15 years - Austria / II. Republic of Austria 1962 - 1 Shilling
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landscapes - Liechtenstein 1959 - 20 Rappen
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ten years - Austria / II. Republic of Austria 1955 - 2.40 Shilling
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Help for the flood victims - Germany / German Democratic Republic 1954 - 24 Pfennig