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Up for sale is an authentic, original vintage **Detroit Diesel Allison Double-Sided Metal Sign**. Measuring exactly 24" x 24", this sign dates back to the era of General Motors' joint branding of their famous diesel engine and heavy-duty transmission division (circa 1970s–1980s). This is a true industrial survivor, not a modern reproduction. It features the iconic cyclical interlocking double-arrow graphic and classic bold lettering on both sides. Designed to be hung from a curbside bracket or building flange, this sign was meant to catch the eye of truckers and mechanics from both directions. **Features & Details:** * **Size:** 24" x 24" (Square)
* **Material:** Painted Heavy-Gauge Metal / Steel (Non-Porcelain)
* **Configuration:** Double-Sided (Same graphics featured on both sides)
* **Design:** Official corporate cyclical logo with bold branding
* **Mounting:** Pre-drilled mounting holes along the margins for easy hanging**Condition:**
The sign is in excellent vintage condition with remarkable color preservation. The white fields on both sides remain exceptionally bright and clean, free of the heavy yellowing or shop grease typically found on garage-kept pieces. Displays minor, authentic age-appropriate edge wear and surface character consistent with an original piece. Perfect for a garage, shop, or petroliana collection. *Please review the high-resolution photos carefully to assess the exact condition before offerding/buying. Securely packaged and shipped with tracking.*
