Swaty provenance - Straight Razor Place Forums
I actually was really interested in this for a while. Here is a distillation of what I have gleaned:
Original was the 3-line: Franz Swaty, Wahring bei Wien (Austria)
Then his son did the Marburg 2-line: Franz Swaty, Marburg Austria (someone has a packaging insert that states this)
Then the 4-line: Franz Swaty Maribor Jugoslavia Fruher Marburg Austria (logical, they changed the stamp to the new location and nationality of Maribor/Marburg, and had to let people know it was the same, Fruher is German for earlier)
Then another 2-line: Franz Swaty, maribor Jugoslavia
At some point, Swaty's were distributed by SR Droescher, and had a sticker on the side to this effect. At a later point (I believe), they were distributed by Pike, and had a sticker on the side to this effect as well. It said something "Pike sole US distributors of the original Swaty hone".
For some reason, the FS, WbW (A) 3-line was popular and barbers/customers used to ask for it as a 3-line, so as a marketing ploy (after Swaty stopped I believe) Pike made a (literally) "The Franz Swaty 3- Line Razor Hone" and it is stamped that on the hone.