All About Pocket Knives

Had this one in my collection for a while now. Using Goins I'm assuming c1915 but the nail file has a curved Camillus with a solid line underneath not the line dot line?? So I got a 3 line marking, a curved Camillus line dot line, and a curved Camillus with solid line. Any theories

.....BWOWV, I've got a bone handled sleeveboard whittler that has the nail file like that, and it has 3 different stamps, also. I've never been able to get an answer on it, either, so I just go with Goin's-1902-1915!!................ ..........

Thank You Carrmillus

..........I've never had anyone confirm it yet, but I think my oldest Camillus(1902)is a tuxedo knife, ebonywood handles, it has the Camillus, curved, line, dot, line, underlined 3line stamp on both blades, only one I have like this!!!......... .............

I just saw this topic, remind me TJ to post some pics of my newest old Camillus, IIRC, it is the earliest tang stamp I have.
It needs some work, but its pretty early, well before WW I.