Do you invest in antique coins, have you invested in antique coins? Have you been able to profit from this investment? I once bought an antique coin. It is a 135-year-old US coin with a $1 face value. I bought it for a really high price because I thought I would be able to make really good money. However, later I found that the coin was in huge supply and did not fetch a good price. I did not sell it, it is still with me.