A quick squizz on http://www.ukserials.com/prodlists.php?type=968, gives:

“WA947  ZE368  Westland Sea King HAR3  f/f 22/05/1985, d/d 03/06/1985, playground at Holmside Park, Edmondsley, Durham

WA948  ZE369  Westland Sea King HAR3  f/f 29/07/1985, d/d 16/08/1985, to Gosport Store, to Charlwood”

Hope that helps