E-Trac and CTX 3030 4-Level Search Program for Detecting Hammies, page 6
4. Non-Ferrous Artifacts Detectable with Discrimination Pattern Level 1
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The following images show a few small medieval bronze artifacts that will be accepted by the Discrimination pattern used in my Level-1 search program. With this pattern, a level of Discrimination is very high, and most of medium- and large-sized non-ferrous bronze artifacts will be rejected.
Medieval Bronze Signet Rings (oiled)
Sheet Bronze Signet Ring, ca. 12th century
Bronze Religious Pendant
Medieval Bronze Bids and Bracelet Fragments
Medieval Penannular Brooch Fibula and Six-Pointed Spur Rowel Among Other Relics
