http://letterror.com/fontcatalog/ltr-federal/

Siderography, the steel engraving process used for currency and old fashioned stocks, renders type with high precision shading and high contrast. LTR Federal recreates this technique for digital design and publishing, capturing the typographic voice of nation states and old fashioned banks and delivering it to your desktop.

LTR Federal comes in four optical sizes. Fewer shading lines mean more sturdy shapes that can be used in small sizes and low resolutions. Higher numbers of lines create more detail and shading in larger sizes. The names of the sets indicate the number of shading lines on the height of the capital.

In order to choose the set that is right for your project keep in mind that reading distance is as important as size. A large word intended for reading at some distance (such as a sign, or lettering on a building) might still require a smaller optical size with fewer lines.