This is an early 20th century art postcard of a painting by C. V. Muttich. It's title is "Girl from Trentschin", which I believe is a city in Slovakia, or perhaps the Czech republic.
I like art postcards, especially ones of artists I'd never heard of, like Muttich. I still don't know much about Muttich, except he was Czech, and I've seen his firs name (Casimil) spelled with a "K" as well as a "C". I suspect "K" is more correct. He apparently did several of paintings similar to this one.
It's a pretty picture. The girl is wearing a very elaborate dress & head scarf, very central European, and looks contemporary to the time of the painting (1914, give or take).