Does anyone know the name of this Westley Richards model?

[John B White]

Offered to me from a trusted source, it was simply referred to as a “BLE”, which I take to mean “box lock ejector “. 2 barrel set. 28” choked 1/2 & 3/4 (mod, improved mod?) and 26” barrel choked 1/4 & 1/2 (improved cylinder and modified?). All s/n’s match. Both barrels chambered for 2 3/4 and “nitro”proofed. And, a rather comfortable beaver tail fore end.

First venture into British makers. Any info you can provide would be welcomed.

Thank you!