Lufkin X46 Red End Extension Rule Value Guide

The Lufkin X46 Red End Extension Rule is a cornerstone of mid-century American craftsmanship, manufactured between 1940 and 1960. It is highly collectible due to its innovative brass slide extension and the signature 'Red End' joints that represent Lufkin's premium industrial durability.

What Is Lufkin X46 Red End Extension Rule Worth?

The typical price range for Lufkin X46 Red End Extension Rule is $20 - $22 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Condition of the boxwood finish and the legibility of the black graduations.
• Smoothness and tension of the folding joints; loose or 'floppy' hinges reduce value.
• The presence of the original brass extension slide and its ability to slide without binding.
• Absence of cracks in the wood or significant oxidation on the brass components.

How to Identify Lufkin X46 Red End Extension Rule?

• Look for the distinct red-painted tips on the ends of the folding boxwood sections.
• Verify the presence of the 6-inch graduated brass slide extension housed within the first section.
• Check for the 'X46' model number and Lufkin Rule Company branding stamped into the wood.
• Confirm the construction materials consist of boxwood sections joined by brass and steel strike plates.

History of Lufkin X46 Red End Extension Rule

The Lufkin Rule Company, established in the late 19th century, became a titan of measuring instruments. The X46 model is an iconic American tool, prized by carpenters for its precision and the 'Red End' joints that signify a higher grade of durability. The brass extension slide allowed craftsmen to measure internal dimensions accurately, such as window frames or door jams, which was a revolutionary convenience for field work.