Moores Bros LPU611 was a Guy Arab III with Strachan L27/28R body, new in 1947 which was rebodied in 1961 by Massey, L29/28R, as seen in this photo.
It passed to Eastern National with the rest of the Moores fleet and routes on the 3rd February 1963 gaining the fleet number 1034 then 2006 - it lasted with ENOC until late 1966.

Photo from Essex Bus Enthusiasts Group collection, courtesy Chris Stewart, taken early 1960s