If you read the referenced link (to Robert Eisenstadts's most excellent reference site (
http://www.antiquegamblingchips.com/) you will see that it addresses the difference between Christy/Jones chips with inserts (edgespots) vs. Paul-Son chips with inserts. But in this instance, the chip does not have inserts, however, there is another tell-tale indicator of a Christy/Jones chip and that is called a "shiny" H&C mold, which may be present on these chips.
A "shiny" H&C is where the recessed surface of the Hat and to lesser extent, the Cane (only because it is hard to see) mold is reflective as a result of the surface being very, very smooth and hard. Overtime, even after much use, these surfaces remain reflective and give the appearance of being shiny, hence the name "shiny" H&C's. A condition not replicated by Paul-Son after they obtained the H&C molds (or at least the permission to use the H&C molds).
From what I can see in the scan, this chip gives the appearance of being a shiny H&C, Christy/Jones made chip.
Aces... is it reflective over the surfaces of the hats?
Jim (Gaming Ore) Follis