Always time for a valentine--and a Queen of Hearts! And what a face on this lovely! Looks like her maker scratched out her outline first with some sort of pointer, then colored the lines with what looks like brown crayon to me.Heartily yours!
5 1/2" x 3 1/4", postcard back, with a McKinley printed stamp, so post 1901 but not by much; late fist decade of the 20th c. Very good condition.