-------- Original Message --------
Subject: Re: Plat maps
Date: Fri, 12 Dec 2003 12:21:15 -0500
From: Susan A. Hawkins <[log in to unmask]>
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Hello all,
Here is the response I got (just) right from Sanborn:
Sue,
The answer is that the date on the map is the Survey date (usually has a
month as well as a year). This means that the date reflects what was
there up to that date (the survey will take from a week to several
months depending on the town or city).
If you have any other questions, please give me a call.
Chris
Chris Genovese
Sanborn Map Company, Inc.
629 Fifth Avenue
Pelham, New York 10803
1-800-511-0073 x218
E-Mail: mailto:[log in to unmask]
http://www.sanborn.com/
At 03:55 PM 11/24/03, you wrote:
>-------- Original Message --------
>Subject: Plat maps
>Date: Mon, 24 Nov 2003 11:27:33 EST
>From: <[log in to unmask]>
>
>
>------------------
>I work in a local history collection (District of Columbia) that
>contains plat maps (e.g., published by Baist or Sanborn). These maps
>were published approximately every 5-10 years for certain sections of
>the city, and are one of the collection's most prized and frequently
>used resources.
>
>Occasionally, a patron will ask about the publishers' methodology: did
>the surveyors collect information during the course of one year--the
>year of publication--or were the data collected over a number of years?
>For example, does the 1909 map reflect what was on the ground for 1909,
>or might it show what was actually there in 1907?
>
>Also, is there any consensus about the accuracy of one group of maps
>over another? Are the Sanborn maps considered more accurate on the whole?
>
>Any advice or information about these maps would be most appreciated.
>
>
>Margaret Goodbody
>Collections Librarian
>Washingtoniana Division, Rm. 307
>MLK Library
>901 G Street, NW
>Washington, D.C 20001
Susan A. Hawkins National Aerial Resources
37 Avenue D
Saratoga Springs, NY 12866
V: 800-827-2994 F: 518-581-0805
http://www.nar.com ...insight through aerial photography
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