identifiable medal bar?

[LuckySlevin]

Hi Gentlemen,

 

There is the following medal bar which may be identifiable:

 

Unfortunately no pictures of the back, but the medals and ribbons seem to be fine and have similar wear. 

 

I looked in 24,28 Rangliste des Deutschen Reichsheeres but could not find the

BH, OMK3 and BT4 combo. 

 

Would be very grateful if anybody could suggest where I could look. 

 

Thank you a lot in advance. 

 

Lucky