A post on Language Log today
(http://itre.cis.upenn.edu/~myl/languagelog/archives/003685.html) might
be of interest to those of you who have some knowledge of highway
signage fonts. In particular, if you are familiar with the new series
that was released last year (or earlier this year???), you might have
the answer to the question as posed, regarding a dotless lowercase i. Or
if you know something in particular about Georgia signage, you might be
able to help.