I can't identify the drawing differences between W and P very well, but I think the stamp is 230P.
Michel writes that the difference in drawing at 230 is about 207 and that is why I used the drawings of the number 2 listed in the catalog.
If you do not have a normal stamp to overlap it over the unperforated one you can measure the distance which if it is about 24.5 mm, you are the happy owner of a 230PUu stamp.


