I have two. Both in very good condition:

W. J. JEFFERY & Co. Mannlicher built on a Steyr Model 1892. Caliber .256 Mannlicher (6.5x53R)
Barrel Marked "(SIGHTED AND SHOT BY) W.J. JEFFERY & Co. 60 QUEEN VICTORIA ST. LONDON"
24" barrel.

...and another, "SHOT & REGULATED BY ARMY & NAVY. C. S. L. LONDON