bids are invited for meteorological instruments and charts hyetograph charts , hygrograph charts , thermograph charts , barograph charts , whirling psychrometer , clock mechanism and drum for srrg , clock drum for hygrograph , clock drum for barograph , clock drum for thermograph , rain measure type i , rain gauge non-recording , cup counter anemometer , wind wane , rain gauge recording , straight sunshine recording cards , short curve sunshine recording cards , long curve sunshine recording cards , hair hygrograph , barograph aneroid , thermograph bimettalic , maximum thermometer , minimum thermometer , dry bulb thermometer , wet bulb thermometer , single stevenson screen , double stevenson screen srrg, ordinary raingauge, clock drum for autographic instruments, barograph(aneroid), psychrometer, measuring jar for rainguage, cup counter anemometer, wind vane, , fortins barometer for school laboratory - as per is:5798 latest total quantity : 11308