On the Aes Grave semis of Tudur is a crescent symbol, described by CNG as a "retrograde C".
In Historia Numorum 1911, this is illustrated as a "hat" rather than a C or retrograde C, and seems to be considered a mark of value.
I wrote to David Perry, who is proposing computer symbols for Latin coinage, about this symbol — but he had never seen a crescent in the hat position. Does this particular orientation have a meaning in numismatics? Or was it a 19th century misreading of a crescent?
Perhaps an Aes Grave specialist is reading this post?
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