This Imperial is a blast from the past, with a wide carriage designed for larger paper sizes, little glass panels in the side to let you see its workings, and a shiny chrome bell on the back.
They've sampled it lovingly at 24-bit, including a mass of keystrikes, carriage returns, paper winds, clicks, buzzes, spool ratchets and other noises – 69 samples in all. The white keys of one octave are given over to keystrikes, which are varied randomly from a pool of 21 samples, while C4 is your space-bar and the black keys are things like shift, carriage return, the end-of-line bell and so on; so you can 'type' with one hand and use the other to punctuate your 'typing' with the appropriate other mechanical noises.