Clear Glass Flask Value Guide

This 1930-1950 American clear glass flask represents a utilitarian era of discreet spirit consumption. Its classic design, featuring a metal screw top and often 'FULL PINT' embossing, makes it a quintessential piece of mid-20th-century social history.

What affects the value of Clear Glass Flask?

• The condition of the metal screw top, as rust or heavy corrosion can decrease the $15 market value.
• Clarity of the glass, with cloudiness or 'sickness' from mineral deposits reducing its appeal to collectors.
• Presence of specific capacity markings like 'FULL PINT' which adds historical context and desirability.
• Overall glass integrity, including the absence of chips or cracks along the utilitarian seams.

How to Identify Clear Glass Flask?

• Check for 'FULL PINT' embossing on the glass body which indicates adherence to mid-century U.S. measurement standards.
• Examine the closure for a period-correct metal screw top rather than modern plastic or cork.
• Look for the distinct clarity and thickness of glass typical of United States manufacturing between 1930 and 1950.
• Verify the presence of mold seams that terminate near the neck, consistent with machine-made production of that era.

History of Clear Glass Flask

Flasks like this one were popular for carrying alcoholic beverages discreetly. The design is indicative of a utilitarian object from the early to mid-20th century, often associated with a period when such personal vessels were common for both everyday use and travel. The 'FULL PINT' embossing, if present on such a bottle, would indicate its capacity and adherence to measurement standards of the era.