Probably a similar motivation. The Athenian analogy is a good
one. And it has been argued that the folded Athenian fabric
coins became accepted as the norm, a badge of integrity, so that this mode of flan
production became a longer term identifying characteristic (equivalent to a brand in modern parlance) of the mint
, trusted by the populace among whom the folded owls circulated.
So it was with the smaller diameter
Tyre shekels? Speculatively, I suggest that the mandating of this coin type
as payment for temple dues may have reinforced the persistence of the smaller diameter
mintage, distinguishing it from the more usual larger diameter tetradrachm
coinages of the period and giving it an aura of greater legitimacy, harking back to a previous era.