File:Head of navigation of the Potomac River LOC 87695757.tif
![File:Head of navigation of the Potomac River LOC 87695757.tif](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Head_of_navigation_of_the_Potomac_River_LOC_87695757.tif/lossy-page1-800px-Head_of_navigation_of_the_Potomac_River_LOC_87695757.tif.jpg?20180531073318)
Original file (15,202 × 9,015 pixels, file size: 392.09 MB, MIME type: image/tiff)
Captions
Captions
Summary
[edit]Warning | The original file is very high-resolution. It might not load properly or could cause your browser to freeze when opened at full size. | Open in ZoomViewer |
---|
DescriptionHead of navigation of the Potomac River LOC 87695757.tif |
English: Relief shown by hachures. Depths shown by contours and soundings. Photocopy of ms. map. Oriented with north toward the upper left. Includes notes. LC copy originally printed on separate sheets, assembled to 1 sheet, thirded, mounted on cloth backing, accompanied by negative photocopy, and annotated in pencil: From negative transferred from War Department. Available also through the Library of Congress Web site as a raster image. DCP |
||
Title InfoField | Head of navigation of the Potomac River | ||
Shelf ID InfoField | G3851.P55 1849 .A4 | ||
Date | |||
Source | https://www.loc.gov/item/87695757/ | ||
Author | Abert, S. T. (Silvanus Thayer); Graham, Campbell; United States. Army. Corps Of Topographical Engineers | ||
Permission (Reusing this file) |
|
||
Other versions |
|
||
Location InfoField | Washington D.C. · Potomac River Estuary · Washington · Virginia · United States · District Of Columbia · Maryland | ||
Part of InfoField | American Memory · Cities And Towns · Catalog · Geography And Map Division | ||
Subject InfoField | Washington (D.C.) · Potomac River Estuary · Washington · Nautical Charts · Waterfronts · Virginia · United States · Maps · District Of Columbia · Maryland · Harbors |
Licensing
[edit]
This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".
This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details. |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 07:33, 31 May 2018 | ![]() | 15,202 × 9,015 (392.09 MB) | Fæ (talk | contribs) | LOC Maps https://www.loc.gov/item/87695757/ #16062 |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 15,202 px |
---|---|
Height | 9,015 px |
Bits per component |
|
Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 8 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 9,015 |
Bytes per compressed strip | 411,138,090 |
Data arrangement | chunky format |
White point chromaticity |
|
Chromaticities of primarities |
|