Webley Junior Pre War - Wood Grips.

With thanks to Troubledshooter for the first three pics.

Webley Junior Pre War - Earliest Known Model.

Courtesy of Leonardj. 

This Junior bears the SN of "J121", which is described by M. H. Newcomer, in Part III of his article on Webley Air Pistols, back in the June 1978 issue of Guns Review, as being the "earliest known Junior".
Another reference to this same Junior can be found in the 3rd Edition of the book Airpistols, by Dennis Hiller.

Webley Junior Pre War - Tin Grip.

With thanks to Troubledshooter for these pics.

And to Brian for these pics (reproduction box):

Webley Junior Post War Model-1.

With thanks to Troubledshooter for these pics.

And to Brian for these pics:

Webley Junior Post War Mk2.

With thanks to Troubledshooter for these pics.

Webley Junior Post War - Air Pistol Pack.

With thanks to Tim of www.timdysonairguns.co.uk for these pics.

Webley Junior Post War Mk2 (Boxed, green) 

Webley Junior (boxed 1940 anniversary edition)

This pistol has a sticker on the box that reads: "Webley & Scott Limited 1790-1940 Established 150 years ago".

Webley Junior (cased prewar tin grip) 

Webley Junior prewar tin grip (with sample pellet box) 

Webley Junior Mk2 box (orange)  

With thanks to Mick W.

Webley Junior prewar (engraved, custom grips)

Advertised at Kempton Park arms fair, October 2017.