Welcome to the forum , medicmamma .
I sure do like the looks of your little stove .
Only thing I'd venture a guess at is that your stove was produced post-1918 , after they (the brothers Martin) formed the company with the same name as on your stove .
The history of the company sure has seen quite a few twists & turns , including a buy-out by employees of the iron casting business ; this does make me wonder if they'd re-cast earlier designs from 'archived' molds .
Wish I had more , but that's it for now .