Philadelphia Raises the Transgender Pride Flag for the First Time
Flying the trans pride flag in front of City Hall is a small gesture that sends a strong message, say organizers.

http://www.advocate.com/politics/transgender/2015/06/04/philadelphia-raises-transgender-pride-flag-first-time

On The Advocate.com
BY  Mitch Kellaway
June 04 2015 5:00 AM ET 

For the first time, the City of Brotherly Love will have the iconic pink, white, and blue of the transgender pride flag waving proudly above City Hall today, commemorating the start of the 14th annual Philadelphia Transgender Health Conference.

While the city has before hoisted the rainbow colors of the LGBT flag — and even has rainbows adorning the street signs of its "gayborhood" district — flying the pride flag is a new way for the city to specifically celebrate its transgender citizens.
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Hopefully a symbol of changes to come - Transgender Acceptance - "The New Normal"

One can dream, but for kids today, it may become a reality. (in 20 or 30 years)

I can confirm that it's flying.

The mayor's representative came and talked during the opening session of the conference and later led a group to watch it being hoisted.  I didn't go, but I did see it when I went out for lunch.

I'll get to see it tomorrow when I go to the Trans Health Conference