Cobalt Blue Glass Bottle Value Guide

This mid-20th century cobalt blue glass bottle is a striking example of vintage glassware, prized for its deep hue achieved through the addition of cobalt oxide. Produced between 1940 and 1960, these bottles served as functional containers for medicines and household goods while remaining highly decorative for modern collectors.

What Is Cobalt Blue Glass Bottle Worth?

The typical price range for Cobalt Blue Glass Bottle is $15 - $25 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The presence and clarity of the '9433' and 'SG 16' embossed base markings.
• Overall glass condition, specifically the absence of chips, cracks, or 'sick glass' cloudiness.
• The intensity and uniformity of the cobalt blue coloration throughout the piece.
• Market demand for mid-century glassware, with current valuations typically ranging from $15 to $25.

How to Identify Cobalt Blue Glass Bottle?

• Look for the specific embossed production codes '9433' and 'SG 16' located on the base of the bottle.
• Examine the glass for the characteristic deep, rich blue color consistent with cobalt oxide additives.
• Check for mold seams and base markings that indicate mid-20th century manufacturing techniques.
• Verify the dimensions and shape which are typical of period beverage or apothecary storage vessels.

History of Cobalt Blue Glass Bottle

Cobalt blue glass has been used for centuries, prized for its deep, rich color achieved by adding cobalt oxide to the glass mixture. While the specific origin of this bottle is unknown, many similar bottles from the mid-20th century were produced for various beverages, medicines, and household products. The numbers on the base likely refer to a mold number or production code.