While one should never say any coin is "too cheap to be counterfeited", the 5 chiao (50 cents) was pretty much worthless by 1970. And brass is generally cheaper than plated bronze or copper, so it wouldn't be economical to make a fake that way. I'd say the "bronze" colour around the edge of the corrosion spot is just the early-stages of the corrosion.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
Posted 10/02/2012 11:12 pm
