Some Harrier GR1A - which had the Pegasus 10 Mk 102 engine - also got the Laser Ranger & Marked Target Seeker (LRMTS) in the elongated nose from 1976.
The Harrier GR3 - re-engined GR1/GR1A and new build - had the Pegasus 11 Mk 103 engine, LRMTS, Radar Warning Receiver (RWR) on the forward edge of the tail and retained the Port Facing Oblique F95 camera in the nose (to the rear of the LRMTS) from 1976 onwards. Conversions and new builds continued through to 1986.
http://www.harrier.org.uk/history/hi...production.htm
Harrier GR3