My brother gave this old knife to me,and I wanted to share it with you folks,it has cambridge cutleryworks sheffield stamped on it,the blade is 8 1/4 long,and the o.a.l. is 13 1/4.I would like any info on this piece,I am guessing the time period to be from 1840- 1860,but I really don't have any info on the company that made it.buy the way he bought at a yard sale for one dollar!!!!!!!