This is a great example of the RARE Wrenn W5018 Star Salt Van in Red , running number 105. 

NOTE : This is the "Black Chester" stamped version not the more common "White Chester" version. 

I believe less than 150 were issued during Period 3 (1972 - 1979) of this variation.

As with all Period 3 Wagons it has "pin wheel" axles and metal rimmed wheel for smooth layout running.

Comes complete with Period 3 box (type 7.5p) and yellow plastic insert.

Condition is "near mint" for its age.