http://blogs.static.mentalfloss.com/blogs/archives/32057.html this is a pretty good blog that explains what the pyramid etc are.
Here's a link to a publication from the Philadelphia Federal Reserve Bank website: http://www.philadelphiafed.org/publications/economic-education/symbols-on-american-money.pdf It's one of the best I've seen. Plus it's PDF and can be printed out for bedside reading ... or wherever you do your light reading. :kewl:
Wow, that seal would have been great as a coin as it looks to have been the first suggestion before going to the dollar bill.
