Vintage Master Rule Manufacturing Co. 'Tufboy' No. 306 Steel Tape Measure

This is a vintage mid-20th-century steel tape measure, identifying specifically as the 'Tufboy' No. 306 model manufactured by Master Rule Mfg. Co. The item features a robust, die-cast zinc or steel housing with a distinctive Art Deco-inspired arched silhouette and concentric decorative ribbing. The central brass medallion is held in place by a single flat-head screw and bears the embossed text 'TUFBOY SIX FEET NO.306'. The top of the case features the arched brand name 'MASTER', while the base includes functional instructions for internal measurements stating 'INSIDE MEASURE ADD 2 INCHES' flanked by directional arrows. This particular unit exhibits a significant aged patina, with visible oxidation, surface pitting, and dirt accumulation across the metallic surfaces, consistent with heavy use in a workshop environment. Small areas of white residue or localized corrosion are visible around the central screw and the perimeter. The craftsmanship is indicative of early to mid-1940s industrial design, focusing on durability and tactile utility. While the internal steel tape is not visible, the heavy-duty construction of the casing suggests a tool designed for professionals. This pocket-sized tool represents the transition from folding rules to modern retractable tapes.