Old Valentine Postcard from unknown year

I went with my 2 friends a few wks back to the Garden Drive-In flea market (Pennsylvania) on a Sunday. Before we left we stopped at this one gentleman's stand. He had 2 large boxes of old random pictures and mostly postcards dating back to the early 1900's. He was selling them for .50 cents each. I couldn't believe it! I only got 3 but this one is the only one without a date on it, and it doesn't seem like it was ever sent..hence no time stamp or anything. It is from New York however b/c at the bottom left in the back it says J.P., N.Y. I think I might start collecting these now! :)