Vintage Antique Victorian 1890 Valentine Greeting Card with 2 Expanding Overlays

The beautifully well-preserved delicate greeting card has inscribed in pencil on the back “Feb 14, 1890” and has a verse about love inside. Although someone wrote the date on the back, I wonder why the person sending it did not sign it - perhaps there’s a touching love story behind that fact. It has 2 overlays that expand out from the card and measures 6 1/2” x 4 1/4” and is in excellent condition given its age. From a smoke-free and perfume free home.