This is a Jaguar Lucas engine control module (ECM) LNA1410GF/301,
for an X300 4.0L manufactured between 1994 - 1997.
Specifications:
Marque: Jaguar
Model: X300
Series: XJ
Years: 1994 - 1997
Part: Engine Control Unit
Part Number: LNA1410WC/301
Manufacture Date: 23/02/95
Plug: 2 Plugs (Red-36 pins Black-36 pins)
Condition: Working when vehicle stripped
Please check that this mirror fits your vehicle as the information I have here is indicative only.