It seems looking at PowerPoint that SlideMasters know their size separate from the presentation they belong to. For example, in the Master Editor, the SlideMaster clearly has a size. Similarly, if I copy a slide from one presentation to another that has a different size, the master scales, so it clearly was able to "tell" that the sizes were different. However, I can't for the life of me find any sort of size being noted in the slide master spec. Am I missing something?

Thanks!