They were made from 1957 - 1958 and in 1960.
Notes of Interest: Limited production in 1957-1958, with national distribution in 1960. Prototypes have serial numbers rather than date codes. Variations included gold- and nickel-plate.
The toggle is also unlike any other Gillette razor in a way not noticed by most people. It may just look like a fatboy that opens with a lever, but actually operates totally differently in terms of the adjustment of the razor gap. If you look at the fatboy from the side while turning the adjustment knob, you will notice that the cap and safety rail remain fixed, and that an interior bar below the center of the razor blade moves up and down bending the blade and thus changing the angle by which the razor edge addresses the gap. On the toggle, the razor blade remains fixed in place, and turning the adjustment knob moves the safety rail up and down changing the gap around a blade with a fixed angle. Thus the toggle shaves slightly different than the fatboy.
The toggle is also unlike any other Gillette razor in a way not noticed by most people. It may just look like a fatboy that opens with a lever, but actually operates totally differently in terms of the adjustment of the razor gap. If you look at the fatboy from the side while turning the adjustment knob, you will notice that the cap and safety rail remain fixed, and that an interior bar below the center of the razor blade moves up and down bending the blade and thus changing the angle by which the razor edge addresses the gap. On the toggle, the razor blade remains fixed in place, and turning the adjustment knob moves the safety rail up and down changing the gap around a blade with a fixed angle. Thus the toggle shaves slightly different than the fatboy.
Are you sure about that? Many of the Toggles I see share the same mechanism as the Fatboy. True, some are of the Red Dot Fatboy variety, with the multiple "teeth" , but most of them appear to use the same mechanism, with the 4 lifters.
The Super Adjustable, Slim, FatBoy, 195 Heavy and Serial Numbered Toggle have a stationary safety bar and raise and lower the blade.
The Red Dot FatBoy and Standard Gold Toggle raise and lower the safety bar.
Thanks to Amishmotorboat, I now have a previously disassembled(and now reassembled) Red Dot FatBoy. What do you mean by "Safety Bar"?
Sorry if I'm using incorrect nomenclature....