12 & 13 are missing. I didn't skip them.. Maybe they are stuck together? I was cropping the scans earlier and looks like a 13 behind page #14. The way these are stapled and bound, it would not make sense to be missing 12 & 13 unless it was a misprint.... When my hangover and flu wear off I'll double check and post an update. (12/31/10 4:06pm EST)
I know it has been awhile since anyone added anything to this thread, but I find this to be an interesting thread.
Here is the front and back of the instructions to the Gillette Brush Plus Shaving System.
Thanks! Adding "GEM Micromatic" to make this come up in a search.
I can't believe I've been on B&B over two years and I'd never seen this thread before.