Leighton,
I've seen several BLE and BLNE from Fred Williams. They all seemed to be the made to the typical Brummy standard, which of course isnt a bad thing at all. I can't recall seeing a "high" grade gun by this maker. I almost bought a heavy BLNE from Thad Scott, it was a medium grade gun (based on engraving) but it had pitted barrels so I sent it back. Your hammergun looks like a nice waterfowling piece. I really like the buttplate, kinda tells you exactly what you need to be using that old gun for.

Use it in good health.

Dustin