Help: Is this die retouching?

[numidan]

I had to play with the lighting to bring out the details and enhance the contrast and hence that is why you see a white finish instead of a mirror like finish on the reliefs of the coin.

For those interesting in viewing other photos, here are two other web sites to look at debating the mystery lines :

https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=360127&SearchTerms=1992

(In French)
https://numicanada.com/forum/viewtopic.php?f=23&t=18316&hilit=1992