Watch Glass

WatchglassA watch glass is a circular concave piece of glass used for holding solids, or for evaporating liquids. They are specially moulded to have a uniform radius of curvature and thickness.
WATCH GLASS
CAT. REFCAP.
155/0150
155/0265
155/0375
155/04100
155/05125
155/06150
155/07200