Board Thread:Lore Discussion/@comment-12481512-20130717104617/@comment-34559084-20191010175241

Look at the first image for aluminum bronze on Wikipedia: https://en.wikipedia.org/wiki/Aluminium_bronze#/media/File:Fauteuil_et_d%C3%A9cors_de_porte_de_Peter_Behrens_(Mus%C3%A9e_de_la_colonie_d'artistes,_Darmstadt)_(8729765938).jpg

Tell me those aren't Dwemer doors! I think aluminum bronze is a pretty good guess.