Glass Measuring Jar This is a clear glass measuring jar, shaped like a cylindrical tube with a V-shaped spout. It has a dual scale system in white ink: one side measures from 0 (top) to 40 (bottom), and the other side measures from 50 (top) to 10 (bottom) in cubic centimeters (ccm) at 20°C. This type of jar was commonly used for various analytical purposes. 1900-1949