After some inspection of the vertical divisions, I have discovered that the basic, vertical division (the thinner one in the CP) is, in fact, 99ths. The larger division is 49.5s. Did you notice the small margin at either side of the CP? Well, that division is 1/198th, one half of 1/99th.
In fact, the first thing you want to do, before starting the model is fold over that margin, and MC it down so that it doesn't flap around. Then you would divide the paper into 49ths, and then 98ths, since both side margins combined are equal to 1/99th.
So, there are your basic divisions. Those should be able to lead you to finding the other lines as well.
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Hi! It's been a long while since I've been active on here. I deleted my Dropbox years ago, so some things, like my Dragonfly Varileg guide, are lost to time. I may still have other things, though! Email me if you have any questions.