Showglobes have a rather interesting history in the early drug store / apothecary shop and can be compared to the "Trade Sign" that was hung on the exterior of a business to advertise a product or service. Although there has been much debate over time as to their actual purpose, it has been long thought that the color of the water was symbolic...for example, red and blue water representing arterial and venous blood. Some historians have suggested that showglobes were used as visual communication tools with red water representing plague or disease present in the community, and green water signaling an "all is well" in the community to travelers wishing to stop overnight. It has also been said that show globes in New England apothecaries would be illuminated at night to warn ships in the harbor of sickness, plague, etc.

There are no chains with this 21" tall showglobe. Also note that a creative previous owner has adapted the collar with a hook (for hanging with a single chain) that can be removed if desired.