Nooitgedagt was a dutch toolcompany that produced high quality tools, often using swedish (Eskituna-) steel. The made everything: from planes, chisels, axes, to workbenches (although all wooden parts were done elsewhere). Nooitgedagt chisels from Eskiltuna steel are still very sought after and are off course a joy to use!
About your question: I've got the same filisterplane, but from a later period. Mine is from after 1955 .
Dating Nooitgedagt tools can be hard, but there are a few clues. Gerrit van der Sterre wrote a really great book on dutch planes and planemakers (dutch/english). See the photo's from the book…
first the stamp: looking at the stamp on your plane you can see that this stamp was used from 1865 till 1945. See the photo with stampdating and look at the distance between the letters and the shape of the crown:
Another indication might be a paper sticker. Often these stickers came loose, but you can still see a change in colour were they were glued onto the plane. Now I can't find such a sticker on your photo's but perhaps there is still a lighter spot? My guess would be that it is a diamond shaped form..
The last indication is the finish: the laquered ones are the newer planes. I can't really see what the finish on your plane is, but it looks like it's not an linseed oil finish. That could mean that the plane is from before 1945, but not that much…
Now I know that there are old craftsmen in the Netherlands that could give a far better dating of the plane but I'm afraid that they are not on lumberjock's… (By looking at the way the spur iron is fastened, for example. note that on my plane this is done with just a screw, on yours there is a bolt going through the plane…).
Nooitgedagt planes withe different stickers…: