Could you give my a hint where did you find it? (reference?) I've never heard about it.

Hi Tuomo, 

   The crystallographic model proposed by Prof. Kelly can be calculated by free software PTCLab, available at https://sourceforge.net/projects/tclab. The calculated result is as follows.

   The orientation matrix is 

0.68139 -0.17035 0.71182

0.71966 -0.02135 -0.694

0.13342 0.98515 0.10805

   And the corresponding Euler angle (ZXZ convention) is 

172.29 83.80 134.27 (in degree)

  Or in miller index is 

Plane (1 1 1)f  | (1. 0. 1)b 0.16206 degree

Direction [1 0 -1]f  | [0 2 0]b 1.60638 degree

To Gert,

  This is the link for the paper. Actually it is a near K-S orientation relationship in lath martensite. Prof. Kelly give a reseanable explanation on the crystallography by double shear model.  

Thanks to each of you for your answers!

Gert, I have seen the OR used by Miyamoto et al. in:

G. Miyamoto, N. Takayama, and T. Furuhara. Scripta Materialia, 60(12):1113–1116, june 2009

and a few other works. The original article, as far as I know, is:

P.M. Kelly, A. Jostsons, R.G. Blake, Acta Metall. Mater. 38 (1990) 1075

Now I have some more previously observed ORs to compare to my results. Wonderful.