Stunning Antique RPPC of Coal Miners with Dog scrap metal The marks stamped on the

The marks stamped on the bottom include "12-22"

which makes me think of the subject here

There is a large stain to the bottom of her dress on on one side

or to frame up a set  together

which I believe is original to it or occurred not long after

Stunning Antique RPPC of Coal Miners with Dog scrap metal The marks stamped on theI was pretty blown away when I find this antique RPPC yesterday in New Hampshirewhat a stunning image. Clearly these are coal miners having emerged from the deep in the mine, with this soot covered hound at the center of it all. I'm guessing this was taken about c. 1910s, when hard shelled electric miner's cap lamps began to replace canvas caps with brackets to which oil lamps attached, which is what a few of these miners are still wearing; this