INTERESTING "... not only is it easy to find someone in the world who can make an inferior product and sell it at a cheaper price, but also to see him making a poor copy of someone else's work and passing it off as his own and even giving it the same name. Counterfeiting the original even in detail, in order to deceive the buyer, is a reproachable action, which reveals that such a person has little or nothing of his own to ofter"

since 1950 ... over half a century of accuracy.