I don't have an exact match
, but a good guess
There is a coin type from Keraia (also called Keraitai) in Pisidia, described in Friedrich Imhoof-Blumer, "Kleinasiatische Münzen", Vienna 1901, on page 375 as number 4:https://archive.org/details/kleinasiatischem02imho/page/374/mode/2up
and depicted on plate XIII as number 14:https://archive.org/details/kleinasiatischem02imho/page/n291/mode/2up
It shows a shield on the obverse and a club on the reverse with the legend K-E.
The coin here seems stylistically to be a bit later, but the iconography is the same and the legend KE-PA would fit.
So I believe that the coin here is from Keraia in Pisidia