"stonej" wrote in message
ups.com...
http://www.local10.com/news/4079181/detail.html


The story says this coin sold for $600,000 in 1981, and $3,000,000 a couple
of days ago, and that "coins sometimes appreciate at an extraordinary rate."

The doubloon appreciated in value by about 6.9% per year.

The Dow Jones Industrial Average was about 970 in 1981, and about 10,500
today, so it has appreciated at about 10.4% per year.

Put it another way: $600,000 invested in blue chip stocks in 1981 and held
there would be worth about $6,500,000 today.