OK, I thought I was blind, stupid, or just nuts---and I may still be all these (depends on who you ask)--I couldn't find any pins on the older pistol so I checked the model 10 and saw what you are referring to. The old pistol (1905 model?) doesn't have extractor star locator pins--it has a grooved extractor rod and a notch in the cylinder.
I had no idea how many small details make up the identity of a firearm. Especially the history behind the US/British model 10--its fascinating.
I really appreciate both of your help. I'm a history buff and this is right up my ally. I have a picture from 1928 of my great grandparents in front of a barn and my great grandfather's brother is pointing this pistol at him from out of a window as a prank. Its a nice piece of family memorabilia to have with this old pistol.
Steve