This link to an early post describes the rifle and the letter Jamieson placed in the butt.

Somewhere on this site is a photograph of the rifle, I think when it was sold, to a collector in the USA

http://forums.nitroexpress.com/showflat.php?Cat=0&Number=36587&an=0&page=101#Post36587

Here is a post with his 500 Jeffery and a photograph of the 500/450.

http://forums.nitroexpress.com/printthre...amp;type=thread