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I am working on a project about Interwar Poland and I am struggling finding some of the necessary data, specifically roads in 1934. I managed to find data about the Voivodeships in 1934 as well as the surrounding countries at the time; however, I cannot find any data related to roads or communications, in a broader sense.

Of course, it doesn't have to be necessarily 1934, but something around the years before WWII kicked off.

Is there any source you could point me towards? I don't care much about the format as long as it's editable in QGIS, so GeoJSON, Shapefile, Geopackage... Whatever works.

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    Have you looked at topo sheets or similar raster data? For example here. I am well aware of the limitations of the raster format, but I have found that in many cases it has the significant advantage of existing at all. Also check out this other post, it might point you to somewhere useful.
    – crafter6029
    Commented Mar 19 at 17:32
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    Nothing I'm aware of. There is a Mapster source for old rasterized maps, where you can find 1:1000000 map of Poland igrek.amzp.pl/…. I would assume georeferencing and manual vectorization would be the best option. On the other hand, how accurate has the data to be? As the roads not neccessary changes over time, I would start with current OSM data and remove all highways/speedways (which were build in last 20-30 years). The remaining set could be accurate enough to cover the roads from 1930's.
    – Grzegorz Sapijaszko
    Commented Mar 20 at 19:28
  • Thanks both for your comments. As you have mentioned, for now I am leaning towards comparing old raster maps with the current OSM data; I believe, after all, that's the most accurate method.
    – Trikelians
    Commented Mar 20 at 20:30

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