Also recently surfaced: The original metacompiled fig Forth model by
Bill Ragsdale. I.e. not one of the more commonly found assembly
listings.
http://www.forth.org/fig-forth/fig-forth-model.pdf
"The FIG Forth Model was derived from Ragsdale's 6502 system. In order
to simplify publication and rapid implementation across a wide variety
of architectures, a translator was written to convert Forth
metacompiler source code into text that, when input to a standard 6502
assembler, would replicate the original kernel image."
http://www.forth.com/resources/evolution/evolve_3.html