Sealed with a Kiss - Kissing and Smooches on Valentine Cards

I'd like to SEA you about being your Valentine

 6 1/4" x 4 7/8"
circa 1930s, 1940s
Mechanical Flat
Marked: prtd in U.S.A.
No other publisher's marks

Will you be My Valentine?

5 1/2" x 3 1/2"
circa 1920s
marked: Series 1260
made in USA
Flat
made in USA

Valentine Greetings St. Valentine, You are a Dear, May you live for Many a Year.

3 7/8" x 4 1/4"
circa 1910s, 1920s
Flat
Easel Stand on back