I got interested in the statement that

I found an old 1995 document on "Currency Features for Visually Impaired People".which listed in Appendix D table D-1 (pages 106-112)the names of 16 countries in 171 listed.Argentina, Armenia, Aruba, Austria, Belgium, Bulgaria, China, Croatia, Czech Republic,England, Israel, Namibia, Netherlands Antilles, South Africa, Switzerland, Uruguayand 7 countries which had on some denominationsColombia, Cyprus, Germany, Malaysia, Morocco, Netherlands, Peru.

That Totals exactly 23 in 1994 but Belgium, Netherlands and Germany now use a common Euro currency on which I did not see tactile features. So that leaves 20.Sri Lanka currency got such dots in an issue dated 2010 and I wondering what are the other 2 progressive countries over 20 years, or are there more.

To read the complete article, see:Currency Features for Visually Impaired People(www.nap.edu/openbook.php?record_id=4828&page=R1)

I also found this blog entry by a graphic designer:

The article linked to an applet from www.looktel.com.

See these YouTube videos:
LookTel Money Reader iPhone app - real time object recognition(/www.youtube.com/watch?v=lvfDnGMPrkI)
LookTel Money Reader 2.0 iPhone app(www.youtube.com/watch?v=_HMVXEZNeNM)

But I really liked the comment, "why would a blind person use a touchscreen phone?" which justifies existence of Smart Phones which are NOT touchscreen, for the Blind and persons like me, who don't like touchscreens.

To read the complete article, see:Banknotes for the visually impaired(www.davidairey.com/banknotes-for-the-visually-impaired/)

To read the earlier E-Sylum article, see:CAMPAIGN FOR TACTILE AUSTRALIAN BANKNOTES(www.coinbooks.org/esylum_v17n22a23.html)