[Leica] How big can you print a 35mm photo?

[lrzeitlin at gmail.com (Lawrence Zeitlin)]

Those of you older than a certain age who visited New York's Grand Central
Station will remember the Kodak exhibit that occupied one wall in the
concourse. Every month a seasonal scene was featured on a giant backlit
frame measuring 30 by 20 feet. Almost invisible in the corner of the frame
was the original Kodachrome slide which was enlarged to make the picture.
Back of envelope calculation reveals that it was a 240X enlargement. Of
course you had to look at it from 40 feet away.
Larry Z