It's really interesting to note that blade is ground to a shape that was very, very popular at the time -- full hollow point, extremely square heel and a long-cut shoulder (not that this one has a shoulder). The much more common Greaves 'Cast Steel / Warranted' is that shape, but I've seen many, many other cutlers who made them, from big names like Rodgers to tiny companies like Green & Pickslay.
Certainly a lot of the Sheffield cutlers produced framebacks, and some of them went out of their way to make them look nice. In fact, ScienceGuy has
one of the coolest I've seen.