A “passglas” is: ‘A tall glass beaker decorated with markings (usually parallel rings or a spiral) delineating measures for a drinking game’ (OED). A sooty face from playing “ibble-dibble” put a stop to my drinking game days, but if I were playing them, this would be my passglas.
Day #294 of a 365 project, where the daily pic is informed by the OED word of the day.