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Copyright © 2025 Geographicus Rare Antique Maps
Digital Image: 1913 Dinsmore Large Two-Sheet Map of California
California-dinsmore-1913_dFOR 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 (http://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.
Andrew F. Dinsmore (1843 - 1925) was a draughtsman and cartographer who worked for the U.S. Government's General Land Office, working his way up to Principal Draughtsman by the early 20th century. As a result, he was involved in the production of many of the G.L.O.'s hallmark maps of the late 19th and early 20th century. Dinsmore was born in Michigan and served in the U.S. Civil War, achieving the rank of Corporal (he is buried in Arlington National Cemetery). He looks to have resided in Detroit for a period after the war, but by 1868, he had relocated to Washington, D.C. In city directories, his occupation is listed variously as printer, draughtsman, or government clerk, but at any rate began producing maps for the G.L.O. by 1876 and continued to do so until soon before his death. More by this mapmaker...
Ithamar Parsons Berthrong (February 26, 1853 - July 29, 1936) was an American surveyor, inventor, and draftsman active with the General Land Office of the U.S. Department of the Interior. Berthrong was born in Rochester, New York. He was made chief of the drafting division on March 23 of 1907. He is associated with many of the most important early 20th century maps issued by the GLO, among them, important maps of Arizona, Colorado, Wyoming, Oregon, Washington, and more. Learn More...
William Bauman Jr. (1866 - July 16, 1933) was an American draftsman. Born in Maryland, Bauman Jr. worked for the General Land Office from the 1890s through at least the mid-1920s. He married Cora Walker (March 15, 1868 - January 18, 1904) on September 12, 1899, with whom he had two children. After retiring from the General Land Office (the historical record does not tell us when he retired), he moved to Florida with his second wife, Rosa, and died in Tampa on July 16, 1933. Learn More...
Eckert Lithographing Company (c. 1907 - 1918) was a printer active in Washington D.C. The firm appears to have worked exclusively for the U.S. Government, particularly the General Land Office and the U.S. Geological Survey. Learn More...
Copyright © 2025 Geographicus Rare Antique Maps | Geographicus Rare Antique Maps
This copy is copyright protected.
Copyright © 2025 Geographicus Rare Antique Maps