Illustration of a Glass Tumbler with Dark Liquid - Vintage Line Art #3293032 (License: Personal Use)

This monochrome illustration depicts a cylindrical glass tumbler with vertical ribbing, rendered in fine-line pen-and-ink style. The interior contains a dark liquid, suggested by solid black fill and subtle highlights indicating surface reflection and glass refraction. The rim is thick and slightly flared, typical of early 20th-century utilitarian glassware.

Commonly used in educational materials, historical cookbooks, public domain archives, or as clipart for retro-themed websites; matches user intent for vintage illustrations, beverage visuals, or design references.