Engraving work by Sebastian can also be found in this blog: https://www.theexplora.com/category/engravers/
Browse the categories in the side bar and you find some eary work of Phil Coggan for example: https://www.theexplora.com/category/shotguns/
This site offers some of the finest gun and gun engraving photography on the internet! Elegant style, very tasteful, very British!