Without even looking I would guess the work of TFL. They are so RARE.I have an SA by Louper and seen the only SS to be known so far. So you check the motto.They are different. Seiler (Yank in UK)
is the same blade sent to me by Louis Wayne Blackburn, also know as Nick Shadow and 3 Finger Louie. See picture below and note the step on the left side of the tang. The blade ia a fake. I posted pictures of it earlier.
What a tool, IMO, obvious fake pieces being hawked as period to fool the unsuspecting & willfully ignorant. He also isn't supposed to state Painpal is his preferred means of payment while also stating the buyer has to fund the transaction fees.
Not that I'm a rat or a proponent of Eban/Painpal's policies but I wouldn't lose sleep if this seller's stuff was pulled en masse as a service to the collecting community as a whole.