There were plenty of other pages, but typically of older dials from lesser-known models. But yes, what a resource!
TAG Heuer have done a good job re-building their archive, thanks to Jack Heuer sharing some of his own personal documents. My sense is that when the new broom of management came through in the early 1980s, they made sure the new offices were nice and clean by throwing out all of the "old rubbish"!