No date but showing 0 [solved]

Here's an example of an undated note with years (621-1350): https://en.numista.com/catalogue/note218547.html
The Gregorian equivalent is not showing. Should "Issuing years" be always specified in Gregorian calendar? How to remove 0 (621)?

The issue is prevalent in the Iran catalogue.

Titus

ND should always be in Gregorian that's the standard calendar for Numista.
Using anything else doesn't make sense for NDs. But I don't see were the 621 comes from.

If it is something that should be always in a Georgian date, then maybe create a thread to suggest that it defaults to Georgian dates? I have had no problem with this, because the country has used several calendars, and none of them were Georgian. Find out what banknote people think.

In the guidelines for editing the catalog, it does not say that the date needs to be Georgian. It says to use the date that appears on the coin. if a date does not, use the date of minting, if known. In neither case is it said it needs to be Georgian.

With my sentence I wanted to say that it is most likely the case that if you write anything in a no date range it will be interpreted as a Gregorian date regardless of calendar chosen. A date range has no date conversion as of now and would as such be useless for the majority of members (that's my opinion).

Also if we stay with your example why not write everything in Farsi on the pages they never used the Latin alphabet too .

Well...the digits of the date are not arabic. So why would the words be Farsi?

The digits are western. The language is western. The calendar does not have to be.

Trying to fix it...