!950's Nostalgia.

[Troubledshooter]

Great scans. That Senior looks like a prewar one.

You are quite correct Danny, both the Mk.1 and Senior illustrations are for pre war models.
Webley often used old print blocks for quite a while after a new model was introduced. This can be seen on their boxes and in their instruction sheets and catalogues, and, as in this example, other's catalogues as well.