In addition to the Mathieu 340 Wby, and a Sedgley Springfield, Steyr Model M, and several other obscure LH rifles, I just scored a commercial FN Mauser 98 '06 that was converted to LH by an unidentified gunsmith who definitely knew what he was doing. The rear receiver bridge was cut off, reversed and re-welded. It looks like it grew there. Excellent work. I had to have it. I haven't shot it yet but thinking about a 35 Whelen rebore.