The Gillette Fatboy is one of the most iconic safety razors available today. Originally called the Gillette 195 (the price point was set at $1.95), it got the name 'Fatboy' shortly after Gillette released its 'Adjustable slim' model. Since the 195 had a handle of greater diameter than the slim model, it got nicknamed the opposite of 'slim' namely 'fat', and hence 'Fatboy'.
The razor has 9 settings that clicks into position as you twist the dial below the head. This sets the razor blade in various positions starting from mild, then steadily increasing the blade gap as you go to the higher numbers, ending up with a very close shave at setting numero nueve (9). The razor has a butterfly mechanism that is opened when the knob at the bottom end of the razor is turned, insert the blade when open, close up again and let the fun start! It is advised to close the razor in the '1' position until the doors are slightly tight, and adjust up from there. The fatty stands 88 mm high and weighs 80 grams.
These razors were only made in American factories and then exported around the world, they are quite easy to find online and in antique stores in the US, but they are certainly quite hard to find locally. If you have to own one piece of usable Americana in your collection, this would probably tick most boxes.