Well guys, I'm stumped here!
The year sure looks like a 7. I know the '854 block was
not a 1967 introduction. It is possible that it could be
found with a mid-year 1969 date, but I've not seen one
with an earlier date.
Could this be a 1977 date? Possibly a service casting?
Does this "7" font ( for the year ) look correct for the
period? This is a mystery to me.....
Steve