Imperial Trick Knife Value Guide

The Imperial Trick Knife is a classic mid-century novelty produced by the Imperial Knife Company of Providence, Rhode Island. Its unique gravity-based locking mechanism, which requires a specific vertical orientation to open, has made it a sought-after piece for collectors of mechanical curiosities and magic memorabilia.

What Is Imperial Trick Knife Worth?

The typical price range for Imperial Trick Knife is $45 - $50 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The condition of the celluloid handles, as this material is prone to 'gassing' or shrinking over time.
• The functionality of the gravity lock; a jammed or loose mechanism significantly reduces the $45-$50 market value.
• The presence of the original factory sharpening and minimal pitting on the carbon steel blade.
• The clarity and preservation of the faux-pearl finish on the scales.

How to Identify Imperial Trick Knife?

• Look for the 'Imperial' tang stamp on the base of the steel blade to confirm the Providence, Rhode Island origin.
• Verify the 'Mother of Pearl' style celluloid handles, which should have a distinct iridescent swirl pattern typical of the 1930-1950 era.
• Test the secret mechanism: the blade should only unlock when the knife is held vertically and the blade is pressed inward.
• Check for nickel silver bolsters and pins which were standard materials for these specific novelty folding models.

History of Imperial Trick Knife

Produced by the Imperial Knife Company of Providence, Rhode Island, these 'trick' knives were popular novelty items. They require a specific technique to open—pressing the blade while holding the knife vertically—making them a favorite for magicians and pranksters throughout the mid-20th century.