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Original GM Hydramatic Service Sign Mechanics Institute Approved 30"x24" Steel
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Original GM Hydramatic Service Sign Mechanics Institute Approved 30"x24" Steel

Starting price (see what it sold for on eBay ↗) $1499.99 as of Jul 17, 2026
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Ships from ZIP 926**
edwinasmile 233 ratings · 100.00% positive
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Description

From the seller
Original vintage GM Hydramatic Service sign measuring approximately 30" x 24". Single-sided painted steel construction with excellent original color and gloss. Displays very well with light scratches, edge wear, and age-related patina. Back shows expected oxidation from decades of use. Great piece for any GM, Oldsmobile, Cadillac, Pontiac, Buick, Chevrolet, transmission, garage, or automobilia collection. Please review all photos for condition.

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