This, from BSSM [British Saws & Saw Makers from 1660]:
Wheatman & Smith, Russell Works, Russell Street (then Kelham Island), Sheffield, 1852 - 1968. The Russell works on Kelham Island now form the buildings for the Kelham Island Museum and the Hawley Collection of classic Sheffield saws.
The spine stampings look typical of thise used 1852-1880.
The hard-point blade will,only have been hardened for the existing teeth, and will probably be too hard to sharpen with a sawfile. Behind, the blade will be good-quality steel, but un-hardened.
The tote looks little-used and very well-fashioned. The hook indicates pre-about 1880. The wood is either dyed beech, or possibly English Walnut [Juglans regia]. The sawscrews have been put in back-to-front. They are domed-nut screws, so post 1863; either Munger, Disston or Glover-patent ones. But could be replacements for earlier split-nut screws.