VTG Culver Time Sheet Music Mirror Art Where The Wild Wild Flowers Grow 11x14⁠ For Sale

This type of art is commonly called Reverse Glass Painting or Glass Printed Mirror Art (specifically a 1970s Culver Time Glass/Mirror Print). The artwork image is screen-printed directly onto the back of the front glass, layered over the mirrored background to create depth.
The original song was published in 1927, while this framed mirror piece was manufactured by Culver Time in the late 1970s (1976–1979).