Quotes:
"How would I know one if I saw it. What do Paulson chips look like. Hat and cane I know. What else ?"
"so at a glance then it would be that the Hat part of the hat and cane is taller ?"

Taller as compared to what? Are you trying to differentiate between different Paulsons or H&C molds?
If so, I think the "Chipology 101" from CC>CC website, pages 23-25 could help you.

http://www.ccgtcc.com/chipology_101.html

Click on the link that says "download.pdf" and give it a minute to load.