Tapered Lab Apothecary Measuring Beaker Clear Glass Vintage Double Spouts

Description

Tapered Lab Apothecary Measuring Beaker Clear Glass Vintage Etched Measurements.  Pours from two sides. Beaker is 7" H X 3 3/4" W at spouts, 3" at base.  Holds 6 oz but etched measurements are marked from 1-22.  I'm unsure as to what unit of measurement the 1- 22 is.  There is a small, raised bump on the base of the beaker, as shown in the last photo.  This is a manufacturing defect that occurred on the seam of the beaker.