Figurines, polychrome pottery, and a marketplace full of copies.
Pre-Columbian material spans continents and millennia: mould-made and hand-built figurines, blackware and polychrome vessels, spindle whorls, greenstone celts and beads, obsidian blades, and metalwork in tumbaga (gold-copper alloy). Styles differ sharply by culture — Maya, Moche, Nazca, Aztec, and many more.
The reproduction trade began with 19th-century tourism and never stopped; entire villages produce 'ancient' ceramics. Look for genuine manufacturing logic (mould seams where they belong, use wear, root marks and burial deposits that grew rather than were painted), and treat thermoluminescence claims in sale listings skeptically.
Most source countries claim ownership of their antiquities, and import/export law bites hard. Provenance documents are essential to legitimacy; without them, assume you hold a modern piece. Record culture-style attribution cautiously and describe iconography rather than asserting age.
Recognising Bronze Age metalwork
Recognising Iron Age and Celtic metalwork
Recognising Roman military fittings
Recognising Anglo-Saxon metalwork