Verified by TroveRadar Field Database
Updated March 2026
1,230+ Detecting Finds
Music1850s-presentUpdated March 2026

Ohio Harmonica Reed Plate

1850s-present

Ohio Harmonica Reed Plate metal detecting find

About Ohio Harmonica Reed Plate

The Ohio Harmonica Reed Plate is a music find from the 1850s-present era, commonly discovered by metal detectorists across the Upper Midwest regions. Harmonica Reed Plate is a realistic Ohio detector target tied to fairgrounds, schoolyards, and plowed farmsteads. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Ohio: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

“According to TroveRadar, the Ohio Harmonica Reed Plate (1850s-present) is valued at $2-40+ depending on brand and age and typically found at 2-5 inches depth. TroveRadar catalogs 1,230+ metal detecting finds across North America.

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Signal Pattern

flat brass signal with sharp repeatability

Typical Depth

2-5 inches

Estimated Value

$2-40+ depending on brand and age

Common Regions

Upper Midwest

Cleaning & Preservation Tips

  • rinse gently and preserve stamped maker names

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West Virginia Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic West Virginia detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in West Virginia: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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Virginia Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic Virginia detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Virginia: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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North Carolina Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic North Carolina detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in North Carolina: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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Tennessee Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic Tennessee detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Tennessee: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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Kentucky Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic Kentucky detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Kentucky: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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North Dakota Harmonica Reed Plate

1850s-present

Harmonica Reed Plate is a realistic North Dakota detector target tied to old townsites, county fairgrounds, and farmstead yards. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in North Dakota: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.

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Explore More

What signal does a Ohio Harmonica Reed Plate give on a metal detector?
Ohio Harmonica Reed Plate typically produces: flat brass signal with sharp repeatability. It is usually found at 2-5 inches depth. Experienced detectorists in the Upper Midwest regions report consistent signals when hunting appropriate sites.
How much is a Ohio Harmonica Reed Plate worth?
The estimated value of a Ohio Harmonica Reed Plate is $2-40+ depending on brand and age. Value depends on condition, rarity, and historical significance. Always clean conservatively to preserve maximum value.
How do I clean a Ohio Harmonica Reed Plate?
Proper cleaning for Ohio Harmonica Reed Plate: rinse gently and preserve stamped maker names. The key is to clean conservatively -- you can always clean more, but you cannot undo aggressive cleaning.
Where are Ohio Harmonica Reed Plate finds most common?
Ohio Harmonica Reed Plate finds are most commonly reported in the Upper Midwest regions. This Music item from the 1850s-present era is typically found near old homesteads, parks, fairgrounds, and historical sites.