flee@shire.cs.psu.edu (Felix Lee) (06/06/89)
On the bottom of business-reply envelopes there's usually a set of short lines of two different heights. This is a bar encoding of the ZIP+4 of the destination. If you don't know the encoding, you might enjoy trying to figure it out. I spent a few minutes puzzling over a handful of envelopes and was pleasantly surprised to find it was an encoding I had read about and forgotten long ago. Now if I could remember all the interesting properties of the code... -- Felix Lee flee@shire.cs.psu.edu *!psuvax1!shire!flee