For those who have had to recreate design pieces, you understand the pain of font hunting. You find something so close, then you find one letter or number off. To remedy this, I use Identifont (almost daily). It's a great tool. Just enter in the letters, numbers, and symbols that you can see on the design piece, and the program will ask questions to narrow down the font you need.
What the Font is another fantastic program. Recently, I had to recreate a diploma, and all I was given was a scan. Not terribly helpful, but I was able to upload the scan to What the Font. It worked perfectly!