Hey Graig - yes, looks to be a home uniform from 1912:
http://exhibits.baseballhalloffame.o...ar&increment=9
As far as the stampings go, tough to tell. Not sure what "Filed before 1919" means on it's reverse. But it looks to have "been around the block" a few times after 1919 based on the later stampings.
Someone is going to win a great photo. Whether it's a true Type 1 remains to be seen. I'd rather have your painting
