Rose Marie Cleese displays a handful of old photos and with the help of Kerri Young of Historypin scans the historic pictures at a workstation on the main floor of the California Historical Society Friday, July 17, 2015. Exactly 100 years ago, on July 17, 1915 the Liberty Bell, one of America’s most iconic symbols of freedom, arrived in San Francisco where hundreds of thousands of spectators lined the sidewalks in San Francisco as it made its way from the Townsend Street Station to the grounds of the PPIE for a four month exhibit. Angelo Joseph Rossi, who later became Mayor of San Francisco in 1931, played an important role in the celebration, with his floral company providing the flowers for the Liberty Bell float and Pavilion at the PPIE. One hundred years later, Mayor Rossi’s granddaughter, Rose Marie Cleese, uploads rare and never-before seen photographs from their family collection, of the Liberty Bell arriving in San Francisco, to Historypin, a new program where the public can showcase rare and never before seen photographs that celebrate the memories and personal stories from the 1915 World’s Fair held In San Francisco. Sharing personal stories through photographs and images for the PPIE100 online exhibition has been made simple: Enthusiasts can simply visit PPIE100’s website at www.PPIE100.org/HistoryPin to upload materials.