What this unit was
Attic mina is modelled here as a weight standard of the Greek: Attic tradition, associated with Athens during Classical Attic representative. The converter represents one mna as 431 g; its basis is one-hundred-drachmas. The matrix carries an indicative uncertainty of ± 8 g.
Within that setting, the unit belonged to a working system for trade, craft production, taxation, bullion, and sometimes coin accounting. It should be read with its period, locality, and evidential basis attached, not as a universal value shared by every culture using a similar name. Coin mass is not a monetary exchange rate.
Evidence of use and sources
The working value is traceable to Smith Dictionary Pondera. Its record is classified as medium confidence and uses the stated basis rather than an assumed culture-wide constant.
Three directly pertinent excerpts from the supplied library are available.
“The rest of the Measures are founded on known proportions.”
Tables of antient coins, weights, and measures, PDF p. 78. reconstructed proportional systems
“Stadium contain'd 125 Roman Paces, or 625 Feet”
Tables of antient coins, weights, and measures, PDF p. 81. Roman distance relationship
“the trade value of the Attic standard, and ... the coinage value”
Flinders Petrie, Ancient Weights and Measures, PDF p. 31. trade and coin systems must be distinguished
Working definition
Attic mina is represented as a Greek: Attic standard associated with Athens during Classical Attic representative.
The converter uses 431 g per unit with indicative matrix uncertainty ± 8 g.
How to use it
Basis: one-hundred-drachmas; confidence: medium. A shared historical name does not make this value portable to another period or polity.
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