Satisfying Job

This afternoon I spent about 4 hours fettling a small bevel chisel that had belonged to my brother in law. You wonder how something so small could take so long, flattening the back took a fair chunk of the time. But I found the process most satisfying and relaxing in away.
There was a stamping on the blade ****shaw ***
Sheffield
I think that is what it says, does anybody know who the manufacturer was