Additionally the area above the end of the grip is thicker in the Stan Smith.
I was taught this was called the flake, which lead to it being stiffer.
Of course this is a term no longer used in modern construction.
Yes, that is what I meant by saying the Smith had 'more wood'.
The Smith was an update of the earlier Tony Trabert racquet. The Cliff Richey was an update of the earlier Wilson Top Notch--both of which (Richey and TN) had different laminations around the head than other Wilsons.
It should be pointed out that back in the wood days the differences between racquets were much more subtle than today. Using different combinations of wood, using different tapers in the throat, etc, all had influence over the weight, balance and stiffness of a racquet but many of those differences might not be discernable to some modern players. Today we have racquets like the HEAD Prestige and the Babolat Pure Drive which are very, very, different. You'd be hard pressed to find anything like that back in the wood days.