Pictures don't match? there were three versions of the BV-141, but the first wasn't known as a BV-141.

The second did not have the assymetric stab, then with the more powerful engine in the third the airframe was enlarged, and the stab off set.

First: Ha-141 Stepped cockpit, pic attached.
Second: BV-141 Faired cockpit, centered stab.
Third: BV-141 B-02 Faired cockpit, offset stab.

Bill.

PS: Good short history here:
http://users.pandora.be/bert.dujardin/Bv_141.htm
Picture at the top is the second type, central pic is the one below, last photo is the final type. wr.