American Memory: Technical summary
URL
http://lcweb2.loc.gov/ammem/pnhtml/pnhome.html
Collection Overview
- Description
- Cityscapes, landscapes, and group portraits, focus on the start of
the 20th century. Subjects include: agricultural life; beauty
contests; disasters; engineering work such as bridges, canals and dams;
fairs and expositions; military and naval activities, especially during
World War I; the oil industry; schools and college campuses, sports, and
transportation. Scenes in all 50 states, DC, foreign countries, and
territories. Panoramas average between 28 inches and 6 feet in length;
average width of 10 inches.
- Source collection
- Panoramic Photographs, Prints and Photographs Division.
LCCN
93-845487
[Link to catalog record (z39.50 query) will
not work when main cataloging system is not available.]
.
- Technical features
- Relatively high resolution images, may be used in pattern analysis, written captions on most
images, most made with Cirkut camera permitting reconstruction of "in the round" perspective.
- Original material formats
-
- Number of original items
- ca. 4200
- Status of collection
- Available online as of November 1997.
- Public access
- The Library is not aware of any
restrictions that inhibit public access to almost all items in this
collection. For about 5 items the Library has obtained special permission
from rightsholders for dissemination through American Memory.
The Library will identify the owners of rights associated with items in
this collection.
See notes on rights and
restrictions provided by the Library to users of this collection.
Aids to intellectual access
- Type & granularity
- MARC bibliographic records. Each bib. record describes a single item.
Sample
bibliographic display in American Memory.
- Linking to digital reproductions
- Bibliographic record contains identifier used in filenames for all versions of image.
Last character of filename indicates image type.
Digital reproductions
Total file-space for digital reproductions:
29 Gbytes
Photographs |
Archival image |
Service image |
Inline thumbnail |
Additional
thumbnail |
Marker |
Filename ends "u" |
Filename ends "r" |
Filename ends "t" |
Filename ends "t" |
Formats |
TIFF |
JPEG/JFIF |
GIF |
TIFF |
Tonal resolution |
24 bit |
24 bit |
8 bit |
8 bit |
Spatial resolution
(approx) |
700x4500 pixels |
420x2200 pixels |
100x550 pixels |
100x550 pixels |
Quantity (approx) |
4200 |
4200 |
4200 |
4200 |
Sample |
Sample archival |
Sample
service |
Sample thumbnail |
Sample thumbnail |
Library of Congress contribution to Digital Libraries Initiative - Phase II
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