Igorrock, sure I know Jon's books, my name is on page xi (first book), vi (smalbores). Look closer, "similar" is not "the same". And, Jeffery rifles were not put together by Mauser like Rigby's were, but by unknown British or even Belgian craftsmen. Further, I miss the Jeffery adress on this rifle. It merely sais it is chambered for Jeffery's cartridge. Not all rifles inscribed "5.6x61 Super Express vom Hofe" or "9.3x64 Brenneke" were made by or for vom Hofe or Brenneke.