I don't believe Spain. It resembles the Pontos "leather cap" coins. https://cngcoins.com/Coin.aspx?CoinID=159214
The best one I've seen is https://www.asiaminorcoins.com/gallery/displayimage.php?album=51&pid=12766 There was a thread about these:...
The Encyclopedia Iranica suggests rivers and earthquakes before concluding "As the inventor of horsemanship, Poseidon Hippios was often...
Try getting it wet. Best I could do digitally: [ATTACH]
You want to mention the oldest provenance you can find, which may be an unsold lot. It is good to say "(unsold)", to avoid confusing people...
[MEDIA] "The carver relies on the vibration of the tool, to feel when it is cutting or not."
Also helmeted Athena, but facing right: [ATTACH] Pamphylia, Side Circa 300 BC, Tetartemorion. 0.15g, 6mm Unpublished denomination? cf. SNG Von...
Two coins of Iconium depicting Nero: [ATTACH] Iconium as Klaudiconium, Nero (54-68 AD), 7.11 g, AE22 Obv: ΝЄΡωΝ ΚΑΙCΑΡ CЄΒΑCΤΟC; Laureate head of...
I have struggled with the dates on these. I read the books, I try to decipher the date, but then I find a professionally cataloged example with...
A bit newer, but good luster and color: [ATTACH] 1945 Uruguay 2 Centesimos, KM# 20a, mintage 2,500,00, struck at Casa de Moneda de Chile.
Arados (?) Zeus/Prow, like https://www.cngcoins.com/Coin.aspx?CoinID=260392 There are a huge number of dates and variations of Greek and...
Here is a Valerian with Α Μ Κ and Γ Β: [ATTACH] Obverse: AY KAI P L OVAL[ERIAN]ON SE P P; Valerian radiate, draped and cuirassed right. Reverse:...
Ancient forgers could counterfeit serrati. [ATTACH] REPUBLIC. L. Memmius Galeria, 106 BC, fourree / plated, 2.60g, 19mm Cr. 313/1b, Sy. 574...
@Andres2 I believe yours is from Selge. @jb_depew Try getting it wet. Are there two crossed lines on the reverse? That is not a common feature...
I think it is a bird, rather than a fish, on the reverse. Possibly there is another bird on the other side.
It is the die. http://snible.org/coins/black_sea_hoard.html
In this auction house photo the aphlaston (stern ornament or aplustre) is oriented to the side so that the date can be read. [ATTACH] PHOENICIA,...
[ATTACH] Macedonian Kingdom, Alexander III The Great, 336 - 323 B.C. Bronze AE 18, 4.435g, 17.6mm obverse modified/defaced into a pattern of lines.
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