This is a superb example of the  Rare Wrenn W2279/5P 2-6-4  Tank Locomotive, in B.R. Black. Running number 80151.The W2297/5P was only issued as a 5 Pole version. Production figures indicate that just over 500  of these were manufactured from 1987 to 1992, before Wrenn, Basildon closure. However, as a collector I believe the figure is far less based on my experience over the years.This particular example is from the 1988 build.

The Tank Locomotive comes complete in a Period 4 issued box, and includes tissue, packing rings, and blue Instruction Manual. The stamp on the bottom of the inner box is "Packer No 3 07833" indicating 33rd week, 7th month, 1988 as date of original Wrenn, Basildon issue.   

Overall Condition Locomotive/Box is "  near mint  " for their age.