Steeven Salvat is a Parisian illustrator, typographist and all around remarkable artists that just published a series of work illustrating mechanical crustaceans with clockwork insides. Inspired by old biological studies, Mechanical / Biological: Crustacean Study is a collection of nine different illustrations that took over thirty hours each to draw on homemade, tea-colored ancient paper with a 0.13mm Rotring pencil. We can’t imagine using a Rotring technical drawing pencil for even a half hour straight, let alone for a period of hundreds of hours over three months, so the fact that he was able to create these gorgeous illustrations is even more mind-blowing than we originally thought. He even went so far as to add cool little touches like light bulbs for eyes, modified species names and fake museum stamps that really make each of the creations feel like you’re staring at something unearthed from a journal that’s centuries old. And if staring at his work in still and moving form isn’t enough, he also made the hand drawn font from the project available for download here.