This antique eraser knife is Marked Joseph Rogers Glum St. Sheffield on one side and on the other it reads Made in England and some other words that I can not make out. Eraser knives of this type were designed to scrape and thereby erase the ink of the time. The total length of the knife is 6.25". The knife is in great condition for it's age and comes with original case, which is worn on one end. The initials EV were cared into the handle of the blade.