there is no mention in any of the relevant ibs numbers that the 1925 italian egyptian
agreement establishing this tripoint or the 1934 italo british egyptian agreement
reaffirming it included any official maps or even specified any official datum or datums
various british french american & north african maps of the 1930s thru 1960s tho are said
there to reliably depict the various borders convergent here at eglysd
& one cant conclude the datum is elusive for it might well just be the common &
nonelusive default datum of
none specified
& thus as likely wgs84 as any
in which case the try or rather the result would indeed be a very loose class b
as represented by the little man in the gully in the first pic
or more likely a tight class c at probably 14 meter range
but if this is not correct
then there remains some possibility of a class d or even class e
for there also remains an outside chance that the tripoint is in fact marked
whether by an official durable marker
since some other parts of these remote borders are so marked
or even by just some little cairn or something these folks could have missed
since there is also no evidence that they were really studying the border alignments or
trying for the tripoint in any other way than just for the lat long intersection
--- In BoundaryPoint@yahoogroups.com, "aletheiak" <aletheiak@y...> wrote:
>
> wow
> nicely done
> & a pleasure to see the shots back on goal & the discussion back on target again
>
> & since all 3 ibs numbers
> 10 & 18 & 61
> join brownlie in indicating this tripoint is unmarked
> or at least was unmarked as recently as 1979
> it is hard to argue with the bona fides of their perfect gps readings
> no matter what datum they may have been using
>
> but since even they are only claiming 14 meter range at best
> & were having difficulty getting it
> i think i would credit them only with a class c
> as in seeing the objective for certain with their eyes
> somehow
> at some point
> in their overall visitation process
> rather than a class b
> as in necessarily having been at the exact spot with their bodies
> for i think that honor would remain to be won
> in this unusual circumstance
> by someone with a better quality gps receiver
>
> --- In BoundaryPoint@yahoogroups.com, "Jesper Nielsen" <jesniel@i...> wrote:
> >
> > Thanks to the unknown visitor to Borderbase, who submitted the entry
> >
> >
> >
> > http://www.confluence.org/confluence.php?lat=22
> > <http://www.confluence.org/confluence.php?lat=22&lon=25> &lon=25
> >
> >
> >
> > Jesper
> >
> >
> >
> > --
> >
> > Borderbase - your online guide to international borders and tripoints
> >
> > http://www.nicolette.dk/borderbase
> >
>