colophon

When did people start to name their typeface in the colophon?

I was wondering when it became a custom to include the name of the book's typeface in the colophon... I can't remember seeing a book from pre-WW1 in which the typeface was named -- which is no surprise considering that the variety of available faces wasn't as wide as it is today, and people would call their faces things like "Gewöhnliche Antiqua" (plain roman).