Andreas Mueller (Lambda sample)

Hi everyone.
I have just pulled out the lambda probe on my 1989-90 3.6L v8.
The problem is it looks nothing like the probe (BOSCH - OX 103-B) that Andreas describes in a previous post (for a 1992 3.6L however).

This one has a long thin (2-3mm) stick on it about 5 cm long-and 2 cables only.

(totally black by the way)

Has anyone got a parts number for this particular probe belonging to the 89-90 model?

Thanx

Frank