Eir tattoo
It’s one of the tattoos you can choose when making a female Norn, there can’t be a better source i think.
I didnt see it in the menu
(edited by GWPlayer.7602)
It’s the 9th tattoo in this picture
https://wiki.guildwars2.com/images/f/f3/Norn_female_tattoos.png
I thought the same but the shoulder isnt the same
http://pre11.deviantart.net/5e5c/th/pre/f/2011/181/4/4/guild_wars_2__eir_by_yeewu-d3kjgvw.jpg
Pretty sure it’s the same.
No, No, No! Mummified flesh on the left! Dried bones on the right!