|United States Tobacco Journal - October 9, 1909|
from Google Books
I found several different advertisements from 1910 that featured the Obak brand, but I haven't found one for the smokes featuring cards.
|San Francisco Chronicle - June 8, 1910|
Here's an example of the T212 Obak cards.
|Obak T212 - Hogan|
from the Library of Congress
A nickel a pop? I'd buy them by the carton.