What are these coordinates?

June 14, 2018 1:57 PM

I'm trying to georeference an old map of Palestine, but I have no idea what these coordinates are. They are three digits and appear to measure a 10km x 10km grid. Link inside.

Here's the map.

Any idea what these three digits coordinates are called?

posted by MisantropicPainforest to Law & Government (3 answers total)

It's labeled as "Palestine Grid" in the key, which led me here.
posted by brentajones at 2:26 PM on June 14, 2018

I also got The National Grid, which I'm guessing would make this a relic of British Palestine.
posted by rhizome at 2:28 PM on June 14, 2018

If you use EPSG:28191 - Palestine 1923 / Palestine Grid, a quick-and-dirty linear georeferencing world file for that JPEG might be:

79.90206121042491816
0
0
-79.88956837114837128
25017.0966139031588682
304966.54287615366047248

British military surveyors lurve their grids, and quoting coordinates in eastings and northings in 1000 m units is standard. Some of the maps in the collection Levant 1:50K Topographic Maps | Digital Archive @ McMaster University Library have good marginal keys describing the system.
posted by scruss at 6:43 PM on June 14, 2018