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Meteorological measurements in the upper air at station De Kooy, 1921-09-09 to 1923-12-18, ERA-CLIM ID 5006
Familiarity with beach warning flags in the Netherlands
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Burgundian standard with St. George: Detail of St. George
Cambio de bandera belga a española para embarcación de recreo de 43 pies ; Flagging from belgian to spanish for 43-foot sailing yacht
Meteorological measurements in the upper air at station Duin Dal, 1916-07-19 to 1916-07-20, ERA-CLIM ID 5968A
Meteorological measurements in the upper air at station Soesterberg, 1916-03-02 to 1923-11-08, ERA-CLIM ID 5018A
Meteorological measurements in the upper air at station De Bilt, 1914-06-05 to 1921-09-07, ERA-CLIM ID 5969A
Meteorological measurements in the upper air at station Breedene, 1915-06-28 to 1917-05-24, ERA-CLIM ID 4983
Meteorological measurements in the upper air at station Breedene, 1915-07-09 to 1917-05-25, ERA-CLIM ID 4984
Meteorological measurements in the upper air at station De Bilt, 1914-06-05 to 1921-09-07, ERA-CLIM ID 5969B
