This is a PAIR of the popular W5004 "Dunlop" 12T Ventilated Van in Lemon Yellow running numbers DE545543 . These were introduced in Period 2 (Triang /Wrenn) and Period 3 eras by the Wrenn, Basildon factory. The Period 2 Van has  plastic wheels and the Period 3 metal rimmed correct for the periods. Both have the Dunlop Logo round the correct way and standard Wrenn metal couplings throughout.

Wagons are complete in correct boxes with yellow plastic inserts. 

Condition of the Vans/Boxes is "excellent to near mint" for their age.