Missouri Harmonica Reed Plate Signal Guide

Harmonica Reed Plate is a realistic Missouri detector target tied to old homesteads, low-water crossings, and CCC park sites. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Missouri: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

Signal Pattern

flat brass signal with sharp repeatability

Typical Depth

2-5 inches

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