In 1917, map publisher Herman Anton Candrian (1862-1928) introduced a novel graphical representation of streetcar lines for San Francisco’s transit riders that he called Car-o-Grams. These little glyphs made streetcar data visual and succinct.
1917c. Candrian’s Double Indexed Guide and Map of San Francisco and Daly City with Car-o-Grams. Pages 86-87. Note copyright. View larger.
Candrian’s company had been publishing city maps with transit routes since at least 1906. Every map had an accompanying pocket-sized booklet that indexed all the streets and gave streetcar information for each.
Sandwiched between the first El Camino Real—the old San Jose Road—and its latter-day replacement, Mission Street, Tiffany Avenue is a short street that cuts down the middle of a vanity homestead laid out in 1864, the Tiffany-Dean Tract.