Bruce Nauman Footsteps London, UK: The Letter Edged in Black, 1968 7.25 w x 11.75 h inches Edition of 2000, one hundred of which were signed
A loose piece of magnetic tape (featuring ambient sounds of walking) wrapped around a folded card with the following instructions:
Set the tape recorder for the speed indicated (3½) Use a bottle or anything else you can think of to keep tension on the loop after you thread it on the machine. (if there is no sound on the tape, it may be upside down). Play the tape quite loudly for as long as you want or can stand
Originally produced as part of the SMS portfolios.