A nice antique glass hydrometer jar or cylinder.

Hand etched with the 0 - 30 Brix Scale, typically used by grape growers and vineyards to determine the percentage of sugar in a liquid.

This 2 inch (50mm) diameter tubular jar has a nicely formed spout and a 2³/₄ inch (70mm) diameter foot.

A few minor bubbles or inclusions.

Stands 6⁷/₈ inches (175mm) tall.