Hamilton #81243 Microliter Syringe 1750LTN 500ul Item is still in original package. It is used for Chromatograph or Mass Spectrograph. Please see photos for more details.
Hans Rudolf Spirorometer Respiratory Calibration Syringe Flow Volume Verification Serial #8460. The unit appears to be in fully functioning condition. The only issue is the cardboard portion of the tip seems to be a bit crumbled as seen in the pictures.
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