The work titled "La Guerre Du Petrole" by Jacques Mercier, dated around 1940, is a newspaper map published by Desfossés Neogravure. The map measures 41 cm in width and 56 cm in height and is part of a series created for the French magazine "7 Jours." This map highlights the geopolitics of oil during World War II, focusing on regions such as Iran, Iraq, and Russia.
You can find a higher resultion version of this map here.
Slightly, but certainly not 90°. You can see this yourself by trying to match the map location in Google maps or OSM. I think the reason they tilted the map a bit, is that it makes it much smaller, while still keeping Crimea on the map.
You could also check the compass rose at the top to see that the vertical axis points towards NNW.