This font contains only numbers. No signs and no characters.
There is a small number above the bars. Just large enough to make the code readable for humans.
How to use it :
Each code must begin and end with an asterisk (*). There is no minimal or maximal limit to its length.
This is a true barcode font, it actually works with most (if not all) readers (mobile and handheld scanners).
All characters are included. Use * as start/stop character.
Please leave a comment, how you used the font. It would be interesting to see whether there is demand.
Trivia: Although it is correct that 3 of the 9 stripes are wide, the name of the symbology is not called Code 3 of 9. In the original design 39 characters were possible to encode.