“Ferrus” is named after the location of famous French foundry Deberny & Peignot which was at “18 Rue Ferrus, XIV Paris”.
“Ferrus” is inspired by a font named “Acier” of the Twenties of last century. But “Ferrus” is not a revival or copy of that font, it is a new design based on a strong black and white contrast in 45 degrees, which gives the font a fake three-dimensional character. I made two cuts, a plain bold one and a Smallcaps version, like this you get two fonts for a fair price.