Perrin cut a new type he called caractères augustaux in 1846, modeled on sketches of Roman capital letters from inscriptions in collections of and around Lyon, an ancient Roman foundation called Lugdunum.
[1][2] These revived types were in part a reaction against the Didot typeface style.
The lowercase letters were based on 16th century models by Jean de Tournes and the English type Caslon.
After Perrin debuted his new types, they were soon copied in Paris and elsewhere in France.
They were known as Elzévir and became popularised by the French printer Alphonse Lemerre and in London by the publisher Thomas Fisher Unwin for his 1890s editions of John Oliver Hobbes.