Searching for File

In 1993 I attended an Autocad r12 Update class. During the course of
that 3 day school the students were given a drawing file that was a
'to scale' drawing of Earth in 2D showing the North and South American
Continents. In a couple of places you could zoom down to city level
and see a grid of a city block and continue zooming down to a floor
plan for a house. As memory serves me the file was designed for
demonstrating the enhanced zoom capabilities of r12 (less regens). I
don't recall the name of the drawing file, but I would really like to
get a copy of that file again, or at least a 2D scale drawing of the
Earth with N.America and S. America on it. If anyone has this file or
something similar, please email me or post a link to the file here.
Please email me at _arkansasepatwork@_yahoo.com (remove the
underscores).

Thanks