Preliminary identification

Vintage Craftsman Wooden Folding Extension Ruler (Model 39311)

Photo reference

5 uploaded photos

Overview

This is a classic 6-foot wooden folding rule manufactured under Sears' legendary Craftsman brand, featuring a brass sliding extension slide for taking precise interior depth measurements. Made with hardwood slats, brass-plated steel joints, and clear black and red printed graduations, it represents the backbone of American mid-century carpentry and tradeswork.

Story

Long before digital distance meters and modern steel tape measures dominated job sites, every carpenter carried a folding wood rule in their back pocket. The brass extension slide at the end allowed craftsmen to take exact inside measurements of door frames and cabinets without bending or guessing.

Maker / Origin

Sears, Roebuck and Co. established the Craftsman brand in 1927, pitching it to tradesmen who demanded rugged durability and absolute precision. Craftsman tools were famous for their unconditional replacement warranty, building a generational loyalty that made the brand a staple of American garages and construction sites for nearly a century.

Condition & Value

Appears to be in very good working condition with minor surface wear. Markings are crisp and readable, wood color remains bright, and the brass extension rule slides smoothly. Good condition helps hold top-end value for vintage tool users.

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Sold comps, value drivers, and venue guidance pulled from recent auction results.

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps
Regional auction· Jun 2024
$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024
$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024
$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023
$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023
$1,375

Close market lane comp with similar material and presentation.