To save space, you were supposed to use the "l" (lower-case "L"). I'm sure there's a good article about it, but all google found on a first try was this metafilter thread:
It's my letter-quality (none of that dot-matrix garbage) NEC Spinwriter 2050 printer. I have several font wheels for it, though not the Futura one I covet. One of these days I need to set it up along with one of my Model M keyboards as a serial line terminal.
http://realitystudio.org/bibliographic-bunker/charles-bukows...