Cobalt Blue Apothecary Bottle Value Guide

This mid-20th century American apothecary bottle is highly collectible for its vivid 'smalt' blue hue, which served the functional purpose of protecting light-sensitive chemicals from UV rays. These cylindrical glass vessels represent a transition in medical history, moving from hand-blown glass to the mass-produced threaded-neck styles used by iconic brands like Bromo-Seltzer.

What Is Cobalt Blue Apothecary Bottle Worth?

The typical price range for Cobalt Blue Apothecary Bottle is $10 - $12 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Condition of the glass, specifically the absence of chips, cracks, or 'sick glass' cloudiness.
• Presence of original labels or contents, which can significantly increase historical interest.
• Clarity and depth of the cobalt blue pigment, as more vibrant examples are preferred by decorators.
• Rarity of embossed branding, such as Phillips Milk of Magnesia or other period-specific pharmaceutical companies.

How to Identify Cobalt Blue Apothecary Bottle?

• Look for the distinct deep cobalt blue color, often referred to as smalt, throughout the glass body.
• Identify the threaded neck finish, which is characteristic of mass-produced medicine bottles from the 1930-1950 era.
• Check for a cylindrical shape and potential embossed maker's marks or brand names on the base or sides.
• Verify the presence of mold seams that run up the sides of the bottle, indicating machine-made production.

History of Cobalt Blue Apothecary Bottle

Cobalt blue glass, also known as smalt, has been used for centuries to create vivid blue vessels. In the late 19th and early 20th centuries, this color was frequently used for medicine and chemical bottles to protect light-sensitive contents from UV rays. Many of these bottles were mass-produced for companies like Bromo-Seltzer or Phillips Milk of Magnesia.