It's all in the wording.
In this era of high temptation to fudge words, because buyers are ignorant, and because they are ignorant, they can be taken advantage of, we all must be vigilant to insist on using common definitions of words in the description of microphones.
I have no problem when someone offers a "meticulously executed copy of a Rolex Submariner". Its clear from such wording that there will probably be no genuine Rolex part in such a watch.
But the title of this thread is false. This is not an original U47 that has been modified (as 'modified' describes an original item that has been altered) but, as the pictures show, this item is a copy (and a bad one) of an original item.
It's already sneaking up on us in the microphone world: copies of M7 capsules are no longer called "a copy of an M7" but referred to as "New M7 made by Thiersch" or a copy of Telefunken's ELA M 251 is now referred to as "New Telefunken ELA M 251".
Again: Please always point out when a seller fudges commonly assumed definitions of words. Because if we don't we will end up in Babylon, and, after a while no one even will bother to protest anymore when a repeat show on TV is called an "Encore Presentation", and old people are euphemized into "Seniors".