There's something to be said for collecting old coins. Some people do it for the fun of it or to have a cool story to tell.

these rare coins often tend to increase in value as time goes. What is the current and old coins SA coins exchange price list, what are the most valuable coins, and how much do they cost?

Although it might sound counter-intuitive, cleaning your rare coins can degrade their value. Old coins tend to collect grit — and character — over time, which is normal. If you clean away the ...