This is a MapHist list message (when you hit 'reply' you're replying to the
whole list)
o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o +
I a not sure that the following message has been sent to the list for I have
not received my copy. In the case it did sorry for the new sending.
v
Dear Dana,
I don't know whether my comments may help you as I am not sure to have properly
understood your request.
This kind of diagram appeared in the 1870's compilation of 1:50.000 scale map
of Italy realized by the Istituto Geografico Militare Italiano using previous
data coming from Neapolitan Staff and direct surveys of Italian Officers.
In a scheme out of the map, in a corner, is printed a diagram very like the one
you show. The diagram shows the covered area, the name of the topographer and
the date of survey.
As soon as I can (I have to digitize one of the sample in my hands) I will send
you (to the list) an image.
Do you think is what you asked?
But the dates of this kind of compilation are hundred years before the ones you
cite!
Ciao
vladimiro
Il giorno 16/set/2011, alle ore 07.58, Vladimiro Valerio ha scritto:
>
> ---------- Forwarded message ----------
> From: Dana A. Freiburger <dafreibur...@wisc.edu>
> Date: 2011/9/15
> Subject: [MapHist] Looking for a map with a specific kind of reliability
> diagram
> To: Discussion group for map history <maphist@geo.uu.nl>
>
>
> This is a MapHist list message (when you hit 'reply' you're replying to the
> whole list)
> o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o +
>
>
> Greetings,
>
> I am looking for a map with a specific kind of reliability diagram.
> Please see attached (small, 51 kbytes) jpg file reference image for
> the needed diagram. I believe maps of this design date around the
> 1960s to the 1970s (but not absolutely positive).
>
> Added comments: I am familiar with (and have found many) examples
> of reliability diagrams from 1:250,000 Army Map Service maps which
> use similar hatchings and letter codes ('A', 'B', etc.) to show an
> area's source (hence its reliability). But nothing that uses a set
> of dates to show a map's reliability. It may be an obscure kind
> of AMS map or some other defense agency; it may not even be from
> the USA (which is OK).
>
> Muehrcke shows a line drawing in his "Map Use: reading, analysis,
> and interpretation" books with this kind of coverage diagram, but
> does not cite actual maps (see 1998 edition, p. 424). I need to
> find an actual map with this kind of reliability diagram (not to
> be confused with a coverage diagram).
>
> All hints, details, and possible sources welcome. Many thanks,
>
> Dana
>
>
> Dana A. Freiburger
> Illustrations Editor
> History of Cartography Project
> 470 Science Hall
> 550 N. Park Street
> Madison, WI 53706-1491 U.S.A.
> phone: (608) 263-3992
> fax: (608) 263-0762
> email: hcart-illustrati...@geography.wisc.edu
>
>
>
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> <ReliabilityDiagram-LR.jpg>
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