Neapolitan flip coffee pot Italy 1960

Here is a genuine Neapolitan flip coffee pot from Italy from around 1960. It is made up of four all aluminum pieces: a pot with pouring, a water holder (boiler) onle large filter insert and a filter cap. The handels are signed PAU Brevett. The bottom is signed G.R.& C, Made in Italy and 4t (4 Tazze) for 4 cups. It measures  17cm /7 inches high. It is in great condition.  The inner fllter is not completly round, but this does not affect the working. WOrks great with a harsh grinded bean from your vintage hand grinder. It makes a slow coffee and needs to be used on a stove top, after which it uses the power of gravity to make a nice not to strong coffee for 4. How to make a “Napoletana”, see the attached Youtube video.