GROUP: Lost & Found Property @ Heathrow Airport

AUTHOR: Mark Walton-Hayfield 

Lost on BA flight 274 from Las Vegas to London Heathrow Terminal 5 on Wednesday 2nd September.
Polo Ralph Lauren Blue Flag Jumper. Boys size age 16.
Was in hand baggage and has fallen out either during the flight, rows 45 and 46, aircraft right, or in Terminal 5.
Still has labels on the item. It was a present from the USA for my son.
Would very much appreciate help in being reunited with it. Image below for reference.
Many thanks for your help and assistance.