Combined, FGED 1 and 2 contain 5503 individual equation objects that I originally made in MathType years ago. Some of them had to go through Illustrator because they contained additional graphics and annotations (Figure 1.5 and Equation (1.78), for example). I have now redone all of them in Radical Pie (without the need for Illustrator), and I'll be releasing remastered books in the near future. The content is exactly the same -- the equations just look better.