Authentic early 20th-century SIMPLEX mechanical screw jack, manufactured in Chicago, Illinois (USA). This is a heavy-duty industrial jack, not a modern reproduction.🔧 Details & Specifications
• Manufacturer: SIMPLEX
• Type: Mechanical screw jack
• Capacity: 1½ ton
• Lift: 8 inches
• Collapsed Height: 12 inches
• Material: Malleable Iron
• Markings:
• “SIMPLEX”
• “CHICAGO – MADE IN U.S.A.”
• “1½ × 8”
• “12 HIGH”
• “MALLEABLE IRON”🏗️ Historical UseOriginally used for railroad, industrial, and heavy machinery lifting, this style of screw jack was common in factories, rail yards, and maintenance shops during the late 1800s to early 1900s.🧱 Condition
• Solid and heavy with excellent original surface
• Natural oxidation and wear consistent with age
• No cracks or weld repairs observed
• Threads visible through side window
• Turning bar not included (sold as shown)Please review photos carefully — they are part of the description.
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