I also personally think this is odd (suspicious) but I wouldn´t feel comfortable condemning them since there are different oppinions regarding this matter and I am no expert.
I know that multiple obverse/reverse die matches happen on roman coinage, but usually on uncirculated coins found in the same treasure, and of course full matching specimens are comparatively few within a hoard.
I have no idea how this works for Kaunos coinage, for coins found in different conservation grades.
I posted them in order of appearance.
The first ones I found are the last four (three are being auctioned/offered right now as I write) and I was worried to find out that the feet are missing in all four of them.
I was fearing die transfer forgery, but I am no authority on this.
Couldn´t find them in forgerynetwork or Forum Ancient Coins Fake database. I don´t know if there are other useful open resources to search for this, I would really thank any suggestions!
The British museum´s online database has pictures for one specimen from the late 1800´s with very similar style, but no matching dies afaik.
(I also thought that the style was odd, but this proved me wrong).