What is the name of the font in The Lord of the Rings? detail

You mean the words on the ring? I can tell you that if you read the original The Lord of the Rings, you can learn more about the language of the Lord of the Rings, which is amazing. This kind of writing, in the legend of the Lord of the Rings, is an ancient elvish letter, belonging to an ancient style writing, which is used in Mordor area and belongs to Tengwa font. In fact, it is also the author who imitates Latin fonts and only appears in flames. It should be said that the outer ring is like this

Ash nazg durbatuluk

ash nazg gimbatul

The inner ring text is as follows

Turuk, Ashe Nazig Salakka

Agh burzum-ishi krimpatul, one ring leads ten thousand rings, is a sentence in the poem. According to the translated version of The Lord of the Rings, it should be like this; Three rings belong to the elf king of the world, seven rings belong to the stone hall dwarf and king, nine rings belong to the long-lived mortal, and one ring belongs to the black champion who lives on the throne. The shadow of the magic capital has fallen. One ring leads to many precepts, and all of them are arrested. A ring imprisons all the commandments, dark and dull. The shadow of the magic capital has fallen.