-------- Original Message --------
Subject: RE: [Fwd: Markings on Aerial Photos: Keep or erase?]
Date: Thu, 19 Jun 2003 17:15:45 -0700
From: "Hillyer, Anne K - TRSP-TPP-4" <[log in to unmask]>


------------------
This comment is from Bonneville Power Administration's Photogrammetry
Department (Eric Stone):

Well, we keep two sets of photography, one in the project folders which
will usually have pen or grease pencil markings relating to the project,
and another set free of any project markings that is for general use,
scanning and review.

As for the circumstances involved at U of O.  It would depend largely
upon any conditions or requirements relating to the original donation.
If the donating agency or person asks that all marks be preserved, than
by all means keep them, either with labels asking that marks not be
removed or by laminating the prints for preservation.  Laminating also
allows you to continue to write & erase on the photos without worry of
erasing the original prints, and preserves the film from humidity.

If on the other hand there are no conditions with regard to markings,
its up to the library or institution preserving the prints.  Some pen &
grease pencil marks can cause further degradation of the images if left
for long periods of time, and can become permanent.  If the prints were
of an historical project, than by all means preserve them, but if a
patron borrows the prints and then expects to see the same marks years
later.. well than he/she should have asked to purchase a set for
themselves. Or have a new building built for your department.

-----Original Message-----
From: Johnnie Sutherland [mailto:[log in to unmask]]
Sent: Thursday, June 19, 2003 11:14 AM
To: [log in to unmask]
Subject: [Fwd: RE: [Fwd: Markings on Aerial Photos: Keep or erase?]]


-------- Original Message --------
Subject: RE: [Fwd: Markings on Aerial Photos: Keep or erase?]
Date: Wed, 18 Jun 2003 08:46:14 +1000
From: "Maura O'Connor" <[log in to unmask]>


------------------


        Dear Andrew
        At the National Library of Australia we have around 800,000
aerial
photos in our collection.  Occasionally we receive ones that have been
marked up - usually by draughtsman in the course of preparing for the
Australian topographic series.  If they are the only prints available
then
we take them in but do not attempt to remove the marks.  I am currently
working through a collection that has come from one of the local
universities so many of the photos are full of student annotations.  If
there are several copies for an area then I am selecting the cleanest
copy.
I have some question about the "preservation of historical markings" as
such
application is very individual and subjective and if I was wanting to
use
aerial photos, which I occasionally do for private research, I would
prefer
to work with a clean copy.
        Yours sincerely
        Maura O'Connor
Map Curator
National Library of Australia
CANBERRA   ACT  2600
AUSTRALIA
Phone : 61 2 6262 1280
Fax : 61 2 6262 1653
Email : [log in to unmask]






> ------------------
>
>
> Hello,
>
> At the University of Oregon, we have a large collection of historic
> aerial
> photos that have been marked up. In many cases, these markings were put
> on
> by the original owners of the photos to help them with their work
> (Surveyors, etc.) Over time and especially after the photos were donated
> to
> the library, these markings were removed as the photos became utilized
> for
> different purposes by new users.
>
> Recently, a patron who had used a set of photos in the field many years
> ago,
> visited our collection trying to find these same photos complete with
> markings. We did find the photos, however the patron believes the
> markings
> should be preserved as historical and not removed.
>
> I am curious to know if other map and aerial photo libraries have
> encountered this issue before and how it was resolved.
>
> Please respond directly to me, and I can summarize for the list.
>
> Any comments would be welcome.
>
> Thanks,
> Andrew
>
> *******************************
> Andrew J.P. Nicholson
> Map/GIS Librarian
> University of Oregon
> Eugene, Oregon
> 97403-1299
> Phone: (541) 346-3051
> Fax: (541) 346-1958
> http://libweb.uoregon.edu/map/
> *******************************
>