I can't help you with the ID, but those are two really cool razors. Where did you find them? I always enjoy reading the acquisition details.
The blade is a cut down personna hairshaper blade, or a vintage sextoblade will also work but these are difficult to find.What blade is in the Wilkinson? Modern or vintage? My Gems only work after being altered.
Its getting hard to find the replacement hand forged blades for the Empire, but if you have any in good shape they can be honed similar to a straight razor.
Wilkinson Sword Empire W15 - de-spine a GEM blade, crack off the back corners and see how it slips into the blade guide all the way back? Enjoy.