[Feature Request] Add Die Axis parameter

[NEKolev]

Describes how the obverse and reverse of the dies were aligned relative to each other when the coin was struck.

For more information you can read these articles:

https://www.forumancientcoins.com/numiswiki/view.asp?key=die%20axis

https://artemis-collection.com/data-statistics/charts/die-axis/

[JanisV]

What about Obv/Rev field from Partameters tab? You can fill reference with 1h-12h values and icons.

I believe the axis offset is a defect and assumed that the Defect field would be used.

[NEKolev]

I think these are separate parameters because Obv/Rev notes what the official face-to-back placement is according to the catalogue Die Axis is already an outlier. I don't think it's exactly a defect for Antique coins specifically.

Here is the NUDS standard for describing coins.

In a forum this field was described as missing. I will try to find the topic.

[NEKolev]

This is the post. No field for die-axis. I use the "shape" field to record this as I don't use "shape" for anything else. There is a feature request to support a die-axis field (https://github.com/OpenNumismat/open-numismat/issues/68).

[NEKolev]

@JanisV since you already added an Die Axis in version 1.9.0 it would be good to add a chart like the one pictured and some reporting.