Time Shutter® is an iPhone application that allows people to see what cities and looked like a century ago and how they have changedin slide transitions between past and present, yesterday and today with professional or your own photographs. The free iPhone application Time Shutter® San Francisco and Time Shutter® New York are available in the iTunes store.

Time Shutter® Credits

ISL Consulting

ISL Consulting

ISL Consulting (1993-2013) was a web and mobile application development firm in San Francisco that built software applications for Fortune 500 companies, medium-sized businesses, start-ups and non-profits. It specialized in Drupal, the open-source platform.

The project was conceived by staff in the San Francisco office in 2011 with the support of ClearMetrics in New York.



ClearMetrics was a digital agency based in New York City which specialized in moving the right ideas off the whiteboard and into the real world.

The firm had a number of notable successes before closing in 2014.

Dinah Darvas, Writer

Dinah Darvas, caption writer and editor, grew up in the San Francisco Bay Area. After UC Berkeley she managed the family import business and traveled throughout Europe and Russia before turning to editing and writing. Since 2000, Dinah has worked on many content-driven websites – from educational materials to consumer-oriented health subjects. Time Shutter® is by far Dinah’s favorite project. Combining her love of San Francisco, history, architecture and folklore she leans heavily on her past 10 years as a guide with San Francisco City Guides, one of the most successful volunteer walking-tour organizations in the US. “Both giving tours and writing allow me to share the joy of discovery with people from all over the world, be it in person or on the Internet.” Additional caption contributors are Beth Adelman, a professional writer and editor with a great enthusiasm for history and architecture and Karen Payne, a professional writer and editor based in Miami, Florida.

Michael Maloney, Photographer

Michael Maloney, responsible for most of the new photographs, is a veteran Bay Area photojournalist with 37 years of shooting experience for Bay Area publications. He recently retired from the SF Chronicle after a distinguished 30 year career with them. Although he was a general assignment photographer, meaning he handled all types of assignments, Michael especially enjoyed shooting sports. He’s covered four Super Bowls, the World Series, the Olympics and all kinds of major sports championships. He also has literally traveled around the world on assignment for the Chronicle, taking him to Africa, Europe, Russia, Japan, the Philippines, Australia, Mexico and Canada. When Michael is not shooting pictures, he can be found riding his motorcycle or anyone of his eight bicycles.

The David Rumsey Map Collection

The David Rumsey Map Collection is one of the world's premiere online map collections, with over 21,000 images online.

The Chevalier Commercial, Pictorial and Tourist Map of San Francisco From Latest U.S. Gov. and Official Surveys used on this site was made by Aug. Chevalier, a French lithographer settled in San Francisco. It is generally considered to be one of the most beautiful early maps of San Francisco. It was first published in 1903; the version used here is from 1911.

Many thanks to David Rumsey's Cartography Associates in California for permission to use this map and Peio Elissalde's GeoGarage spatial image web service in Paris, France for the digital images superimposed on a Google Map of San Francisco.

Early San Francisco Postcard Publishers

Time Shutter® San Francisco features many of the city's biggest and best postcard publishers around 1900. These include Edward H Mitchell, Pacific Novelty Company, the Detroit Publishing Co., Cardinell-Vincent Co., Richard Behrendt, E.C. Kropp & Co., Newman Postcard Co., Britton & Rey, Charles Weidner, Souvenir Publishing Co., Pacific Stationery & Specialty Company and others. Images were scanned and restored by Photo Grafix in Chicago.

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