Digital Image: 1923 O'Shaughnessy Street Map of San Francisco, California
SanFrancisco-oshaughnessy-1923_d
Title
Map of the City and County of San Francisco.
1923 (dated) 25.75 x 33.75 in (65.405 x 85.725 cm) 1 : 19200
1923 (dated) 25.75 x 33.75 in (65.405 x 85.725 cm) 1 : 19200
Description
FOR THE ORIGINAL ANTIQUE MAP, WITH HISTORICAL ANALYSIS, CLICK HERE.
Digital Map Information
Geographicus maintains an archive of high-resolution rare map scans. We scan our maps at 300 DPI or higher, with newer images being 600 DPI, (either TIFF or JPEG, depending on when the scan was done) which is most cases in suitable for enlargement and printing.
Delivery
Once you purchase our digital scan service, you will receive a download link via email - usually within seconds. Digital orders are delivered as ZIP files, an industry standard file compression protocol that any computer should be able to unpack. Some of our files are very large, and can take some time to download. Most files are saved into your computer's 'Downloads' folder. All delivery is electronic. No physical product is shipped.
Credit and Scope of Use
You can use your digial image any way you want! Our digital images are unrestricted by copyright and can be used, modified, and published freely. The textual description that accompanies the original antique map is not included in the sale of digital images and remains protected by copyright. That said, we put significant care and effort into scanning and editing these maps, and we’d appreciate a credit when possible. Should you wish to credit us, please use the following credit line:
Courtesy of Geographicus Rare Antique Maps (https://www.geographicus.com).
How Large Can I Print?
In general, at 300 DPI, you should at least be able to double the size of the actual image, more so with our 600 DPI images. So, if the original was 10 x 12 inches, you can print at 20 x 24 inches, without quality loss. If your display requirements can accommodate some loss in image quality, you can make it even larger. That being said, no quality of scan will allow you to blow up at 10 x 12 inch map to wall size without significant quality loss. For more information, it is best consult a printer or reprographics specialist.
Refunds
If the high resolution image you ordered is unavailable, we will fully refund your purchase. Otherwise, digital images scans are a service, not a tangible product, and cannot be returned or refunded once the download link is used.
Cartographer S
Michael Maurice O'Shaughnessy (May 28, 1864 - October 12, 1934) was an Irish-born civil engineer who played an important role in the urban planning and infrastructure of San Francisco in the early 20th century, including in the reconstruction from the 1906 earthquake and fire. Bor in County Limerick, O'Shaughnessy studied civil engineering at several institutions, ultimately graduating from the Royal University of Dublin. While looking for a job in London, he was encouraged to try moving to California instead, which he did, arriving in San Francisco in March 1885. Unable to find work in San Francisco, he instead found employment planning cities and towns further in the interior of northern and central California, experience that would late prove helpful in determining a reliable water supply for San Francisco. By 1891, O'Shaughnessy had begun engineering projects in San Francisco itself, but still also worked elsewhere, including a stint in Hawaii, where he designed irrigation systems for sugar plantations. In 1912, O'Shaughnessy became city engineer for San Franciso, accepting a significant pay cut for the opportunity to shape several projects, including securing drinking water for the city (working with the private Spring Valley Water Co. and the Hetch Hetchy Project, building a dam and reservoir near Yosemite and channeling the resulting water to the city), the Geary Street Railway (an early component in the city's electric streetcar network), multiple tunnels through San Francisco's hills for streetcars, and various infrastructure and reconstruction projects related to roads, sewers, electricity, gas lines, and so on. O'Shaughnessy served as city engineer until 1932, when he took on an advisory role until his death two years later. He left a deep imprint on the city's layout and infrastructure. Multiple sites, including the dam at Hetch Hetchy, are named in his honor. More by this mapmaker...
Halpin Lithograph Co. (c. 1914 - 1920) was a short-lived lithographic printer in San Francisco that specialized in maps and publications for the city government and associated bodies (such as chambers of commerce). Learn More...