Metal Coinage

Minted electrum, gold, silver, or base-metal coins with regular weights and state or civic authority marks, enabling portable monetary exchange.

Core metadata

Prerequisites

Dependents

Fields

Field lanes

Node sources

Prerequisite edge evidence

Edge/source evidence summary:

Prerequisite Type Confidence Evidence level Note Sources
Gold and Silver Working (gold_and_silver_working) required 82% textbook Early coins used electrum, a naturally occurring gold-silver alloy, so precious-metal working was a direct material capability.
  • Lydia & the First Coins (American Numismatic Association Money Museum, 2026, museum) • Supports: node, maturity, edge
Mining (mining) commercial_or_scaling_dependency 72% expert_inference Coinage at scale required reliable metal supply, although individual early coins could use alluvial electrum.
  • Lydia & the First Coins (American Numismatic Association Money Museum, 2026, museum) • Supports: node, maturity, edge
Standardized Weights and Measures (standardized_weights_and_measures) required 82% textbook The museum source identifies regular weights as a defining feature of the earliest coins.
  • Lydia & the First Coins (American Numismatic Association Money Museum, 2026, museum) • Supports: node, maturity, edge

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