This one arrive yesterday.
Denomination: 1 Karshapana, Composition: Silver, Size: 12.45 X 17.70 mm, Weight: 2.75 Gram
The seller refers to GH 456 and names the sun, hill and six armed symbol on the obverse, with bankers marks on the reverse.
I feel that top left of the first photo is a bankers mark, I see a tree left of the sun, and I'm not seeing a hill.
I also feel that the reverse has a taxila mark.
Of course I have very little experience in reading these symbols, so some expert guidance is kindly requested.
Grant
Note:
THCoins from World Of Coins has shown me an excerpt from G&H which shows that my coin is not GH 456.


The Ox moves slowly, but the Earth is patient.