This is a superb example of the Wrenn W5053 B.R. Utility Van in Brown, running number E37232. 

 Introduced by Wrenn, Basildon in Period 3 this continued in production during Period 4. It was issued in both Period 3 box (type 7.5p), and Period 4 (type W7304) boxes before Wrenn Basildon factory closure in 1992.. These examples come from  Period 3/4 builds, and both types are more difficult to find today. No other genuine variations of colour or running number exist that I am aware of for the W5053..   .

The Van comes complete with P3 or P4 box, and yellow plastic insert.

Condition of Van/box is "near mint " for their age.