I have a special fondness for this casting. I had packed all of my collection away after a move to a new home in 1988. In the early 90's I walked into one of my town's oldest toy & hobby shops. They had just moved from their previous location to a larger building next door. In a one of their display cases were three vintage Matchbox models (new old stock) that was discovered in the move. I bought all three and one of the three was a brand spanking new 14b. It was the single event that got me unpacking and displaying my collection again.
Thanks for the compliments. Your correct in saying it's the last issue Pete. Both the model and box had very short production runs before they brought out the 14c.