Rare Eaton Yale & Town QDM Lapel Pin Quantitative Debris Monitoring Vintage

The Rare Eaton Yale & Town QDM Lapel Pin is a vintage collectible piece from the United States. This unique pin showcases the Quantitative Debris Monitoring (QDM) feature, adding a specialized touch to any collection. With its specific origin and historical significance, this lapel pin is a rare and valuable piece for enthusiasts of locks, keys, and unique tools and hardware items.

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