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Hey Area: Why do new San Francisco street signs have upper and lowercase letters?

KALW_StreetSigns_Master.jpg
"lowercase," by Flickr user throgers. Used under CC BY-NC-ND 2.0. Cropped.

Listener Holley Wysong wanted to know why new street signs in San Francisco use a typeface with upper and lowercase letters. She asked KALW's collaborative news project Hey Area to find the answer.

Click the player above to hear the story. 

What have you always wondered about the Bay Area? Ask Hey Area below.

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