The original upstream page http://www.acondia.com/fonts/tengwar/index.html states "This Content has been removed at the request of the Tolkien Estate." As far I see was the original font by "Tolkien Estate". It was somehow reverse engineered and distributed with an unclear non-commercial license. Distribution and mirroring was not explicitly allowed. -> last riting. Reproducible: Always
Hm, the Tengwar were created by Feanor in the First Age (Y.T. 1250), so certainly any copyright has expired by now? :)