This is a superb example of the VERY RARE Wrenn WE100 Cardiff Castle Set advertised by Wrenn, Basildon in the R2/5/68 Catalogue comprising the following;

• Wrenn Cardiff Castle (running number 4075)
• Hornby Dublo Western Region Coach (running number W125870) X 2
• Hornby Dublo Western Region Guards Coach (running number W34290)

This was also advertised in Railway Modeller September 1968. Please NOTE ; This is the rarer version with H/D Western Region Coaches, not the more common Set with Pullmans.

Wrenn, Basildon used a standard Set box for this combination (WP100/WF200/WPG300) and marked the " WE100" in pen on both box ends. The picture shows this.It is not possible to say how many were produced by Wrenn, Basildon in this format, but I believe as a collector very few.