This one came to me as a blade only, hence the rescale. The manufacturer was Birks (William and John of Norfolk Street; the mark appears in the Gales and Martin directory). I hope that it resembles what it once looked like. Scales are horn, attempting to match the coloring of some period examples I have. The collars likely would have been stamped steel, but this shape of stamped brass was not unheard of at the time.
Attachment 161686
Attachment 161687
Attachment 161688
Attachment 161689