American Memory: Technical summary
Architectural Drawings Selected from the HABS/HAER
URL for preview:
Group of measured documentation drawings of architectural and engineering
structures, including a cathedral, a barn, a windmill, a schooner, Thomas
Jefferson's Monticello, and other sites. This small group of drawings
presages the larger collection to be placed online during the next three
years, when these drawings and many others will be joined with
photographs and written documentation to present information about 30,000
- Source collection
- Historic American Buildings Survey and Historic American
Engineering Record Collections, Prints and Photographs Division.
Drawings (and other materials) produced by the HABS and HAER projects
are transferred by the National Park Service to the Library of Congress
to provide permanent storage and public access.
- Technical features
Large, detailed measured drawings, documenting a wide range of
structures. Original drawing sizes include "B" (18x24 inches), "D"
(24x36 inches), and "E" (34x44 inches).
- Original material formats
- Number of original items
Selected set: 20 sites (236 drawings)
- Status of collection
- Preview available online. Descriptive database
(but no digital content) for full collection available through Prints &
Photographs Online Catalog. Descriptive database will be made available
through American Memory later in 1998. Digital content will be added in
- Public access
- The Library is not aware of any restrictions on these materials.
See notes on
restrictions provided by the Library to users of the collection
Aids to intellectual access
- Type & granularity
Database of descriptive records. Each record describes a site or
represented by a number of drawings, photographs, and data pages.
- Linking to digital reproductions
- Descriptive record contains identifier used as directory name for
"metaobject" containing all materials related to a site. This directory
has separate subdirectories for photographs (/photo/), drawings
(/sheet/), and images of data pages (/data/). Sample subdirectory
Last character of filename indicates image type.
Total file-space for digital reproductions:
165 Mbytes (estimate)
||Filename ends "a"
||Not yet available
||TIFF (ITU Group IV compression)|
D size - stripped
B & E sizes - tiled
Library of Congress contribution to Digital Libraries Initiative - Phase II