Warranted Flask Bottle Value Guide

This American-made glass flask from the 1900-1920 era is a classic example of early 20th-century utilitarian packaging. It is highly collectible for its distinct 'Warranted Flask' embossing, which served as a pre-standardization guarantee of the bottle's 6-1/2 ounce capacity.

What affects the value of Warranted Flask Bottle?

• Condition of the glass, specifically the absence of chips, cracks, or heavy 'cloudiness' from burial.
• Clarity and depth of the embossed lettering, as sharper strikes are more desirable to collectors.
• Market demand for early 20th-century whiskey and medicine containers, typically valued at approximately $15.

How to Identify Warranted Flask Bottle?

• Look for the specific embossed text 'Warranted Flask' and '6-1/2 OUNCES' on the sides of the clear glass.
• Check for a tool-finished or machine-made lip consistent with United States manufacturing from 1900-1920.
• Examine the glass for bubbles or slight imperfections typical of early 20th-century mass-produced glass containers.

History of Warranted Flask Bottle

Flask bottles like this were commonly used in the late 19th and early 20th centuries for a variety of liquids, including whiskey, medicine, and other consumables. The embossing often served as a guarantee of quantity or quality, a common practice before standardized packaging became widespread.