- 1. A nail one or two inches long, of iron, brass, tin, or tinner iron, with a hole through the flattened head, used to mark stations in underground surveying. Source: webster
- 2. A nail one or two inches long, of iron, brass, tin, or tinneriron, with a hole through the flattened head, used to mark stationsin underground surveying. Source: adambom
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