vintage floral print, roses on black flower picture in original wood frame

Vintage (1930s? 40s?) framed floral print picture, signed Mary Minnick... something.

We haven't been able to find out anything about this artist or her prints, but it's very pretty, with sweetheart roses on black.

The frame is pleasingly shabby, with worn original paint. Measures about 15" x 13" overall.