Hi rconn2,
Flobeds is currently using Radium Talalay in their mattresses.
Most full latex cores that are made in a mold have some identifying marks or labels when they are manufactured but an individual layer may not have any depending on what part of the core they are cut from or on whether a label is still attached.
There is more in post #3 here about identifying Dunlop vs Talalay but most people wouldn’t be able to tell the difference between different manufacturers unless they worked with the materials on a regular basis.
Pincore patterns depend on the mold that is used so they can vary.
Phoenix