City Coach C7, LPU690, a Commer Commando with Perkins P6 engine and Heaver B33F body new in February 1948, one of a batch of 7 new in 1947/8.
It passed to Westcliff Motor Services and then to Eastern National before being sold to a dealer in November 1956 and scrapped.

Click here for a picture of C7 in service with ENOC in 1956.

In the background is what looks like a London Transport utility Guy, similar to preserved G351.

Photo from Mike Morant collection, taken 1950, opposite Newbury Park Underground/Bus Station
Click here for Mike's Fotopic site