To hard sell salespeople

Someone convinced against their will is of the same opinion still!Dont talk so much that you buy back the sale.

Acid Test For Gold

Found this old piece of info entitled “How You Can Find the Number of Karats in Gold”, can anyone tell me how accurate it is and whether there is a better process?If you wish to find out if a piece of jewelry is made of gold, touch it with a glass stopper which has...