This was featured in the book 'Visible Signs'by David Crow but not referenced.
Typophile
Very bold (slightly rounded) – grotesque?
Vernacular, in the sense of an amateur trying to make a sign. The rounded corners are probably caused by or accentuated by (multiple) mediocre reproduction(s).
It's monospaced -- it may have been made using paper stencils bought at the hardware store.
This may shed a little more light – here is the whole typeface as it appeared in the book.
See the suggestions here: http://typophile.com/node/72370#comment-420985
Thank you skyfein & riccard0 – big help.
Captured from web.archive.org on 16 Dec 2012. view this capture