This is a superb example of the Wrenn W.2412 "SEATON" Limited Edition Locomotive in BR Green, running number 34020. Introduced by Wrenn in 1989, only 196 were issued 1989 -1992 from a planned production run of 250. This example is from the 1989 build. Comes complete with:

Limited Edition box correctly stamped W.2412 S/L " SEATON" LIMITED EDITION" in red ink/ tissue/packing rings

Limited Edition Certificate ( No 25)

Plaque "1945 - SEATON - 1989" - Track and Plinth

Instruction Booklet

The bottom of the inner white box is stamped "91142" indicating 42nd Week, 11th Month, 1989 as Basildon issue date.

Condition is "near mint to mint" in my opinion.