First visual differences are that 179 has always had a ‘W” on the cabin door and has a different nose cone / antenna configuration.
Then the locations are different:
Four Lynx on G-INFO...
G-LNKX = XZ616 (Mk7 - built 1980)
G-NCKS = XZ179 (Mk7 - built 1978)
G-NCKY = XZ678 (Mk7 - built 1982)
G-NCKZ = ZD252 (Mk8 - built 1982)
Despite the claims of being ‘The only fully operational and UK registered Westland Lynx permitted to fly’ (even though the permit according to GINFO ran out in January & 179 is fully up and running) and the date advertised as 1977, I’m going for 616 being the one for sale.
(pic: Steve Kingston)
... and not 179...
(pic: Project Lynx)