Nice Lang and Hussey, trw.
Am I right in thinking that when it was .410’d they sensibly kept the original rifle barrel external dimensions?
What is the backsight dovetail width front to back?
I might be able to find something as we are both on the same side of the pond.
Thank you, that is most kind. Yes, indeed the original barrel was kept.
As for the rear sight, I suspect it would have been a typical rook rifle one fixed, one folding leaf type. Once I have collected it from A,G & L I shall be able to take accurate measurements for you.
Tim