July 26, 2026 Dig Treasures
Identification Guides

How to Identify a Metal Detecting Find: A Beginner’s Guide

◷ July 26, 2026 ◴ 3 min read Identification Guides
DIGTREASURES FIELD GUIDE

How to Identify a Metal Detecting Find

Found an unknown coin, relic or metal object? Follow this practical step-by-step guide before cleaning or damaging your discovery.

POST YOUR FIND FOR IDENTIFICATION →

Finding an unknown object is one of the most exciting moments in metal detecting. A signal becomes a target, the target comes out of the ground, and then comes the big question: What exactly did I find?

It may be an old coin, button, buckle, token, jewelry, military relic or another object that has spent decades underground. Corrosion and soil can dramatically change its appearance, so identification should begin before aggressive cleaning.

⚠ IMPORTANT

Photograph an unknown find before cleaning it. Aggressive cleaning can permanently remove dates, lettering, mint marks, plating and original patina.

01

DON’T CLEAN IT YET

One of the most common beginner mistakes is immediately cleaning a find. Dirt can hide important features, but harsh cleaning can destroy them permanently.

Avoid wire brushes, abrasives, polishing compounds and strong chemicals. Gently remove only loose soil until you know what the object may be.

02

TAKE THE RIGHT PHOTOS

Good photographs can make the difference between a quick identification and a complete mystery.

FRONT Photograph the entire front surface.
BACK Always photograph the reverse side.
EDGE Edges can reveal thickness and construction.
DETAILS Take close-ups of writing and symbols.
Photography Tip Use soft daylight, a simple background and avoid excessive digital zoom.
03

MEASURE YOUR FIND

Two objects may look almost identical in a photograph while having very different dimensions.

DIAMETER mm / cm
WEIGHT grams
THICKNESS mm
LENGTH cm
04

CHECK LETTERS, DATES & SYMBOLS

Carefully inspect the object for surviving clues such as:

  • Dates
  • Letters and initials
  • Numbers
  • Portraits
  • Crowns and shields
  • Animals or stars
  • Mint marks
  • Manufacturer marks
  • Military insignia

Even one readable character may significantly narrow the identification. However, corrosion can distort letters and numbers, so uncertain markings should be treated as clues rather than proof.

05

IDENTIFY THE POSSIBLE METAL

The material can provide another important identification clue.

COPPER BRASS BRONZE IRON LEAD SILVER GOLD ALUMINUM

Detector target IDs can be helpful, but they should not be considered definitive proof of the object’s composition.

06

WHERE WAS IT FOUND?

Location provides context. The same-looking object may have completely different origins depending on the country or region where it was recovered.

Protect Sensitive Sites

Share the country or general region when asking for identification. Avoid publishing exact coordinates of archaeological or protected locations.

07

COMPARE — DON’T GUESS

LOOKS SIMILAR ≠ SAME OBJECT

Compare multiple features rather than relying on a single online image.

For coins, compare weight, diameter, lettering, portrait and reverse design. For buckles, buttons and relics, compare construction methods, attachment systems, metal type and decoration.

08

ASK THE COMMUNITY

Some objects remain difficult to identify even after careful research. Experienced detectorists and collectors may notice details you missed.

When requesting help, include:

  • Clear photographs
  • Diameter and dimensions
  • Approximate weight
  • Possible metal
  • Country or general region
  • Visible dates, letters and symbols
STILL CAN’T IDENTIFY IT?

Let the DigTreasures Community Take a Look

Upload clear photos and information about your discovery. Other detectorists can examine the object and help point you toward a possible identification.

POST YOUR FIND →

Quick Identification Checklist

✓ Photograph before cleaning ✓ Photograph both sides ✓ Measure diameter ✓ Record the weight ✓ Look for dates ✓ Look for symbols ✓ Record the general location ✓ Ask the community

Every Find Has a Story

Good identification starts with good documentation. Take your time, preserve the find and let the evidence guide you.

Other detectorists can examine the object and help point you toward a possible identification. Additionally, utilizing a quick identification checklist can enhance your accuracy in determining the nature of your find. It is crucial to document every aspect of the object, including photographs, measurements, and any distinguishing marks or symbols. Engaging with the community can further enrich your understanding and appreciation of the historical significance of your discovery.