Hello,
As for Ottoman coinage, we usually add the regnal year in the mint letter field.
I have a coin where the regnal year is written as 01 (error for 10).
https://en.numista.com/catalogue/pieces115456.html
when i entered "01" in the mint letter field, it was automatically changed to just "1".
I tried ".01" as a way around, but it changed it to "0.01". So that field clearly accepts the values as numbers.
Can Xavier force this field to accept values as text only?
For now, I wrote the value as "10"