Love on the Rocks - Geologists Radiating Passion and Romancing the Stone

Valentine What are my PROSPECTS Yes ORE No?

3 7/8" x 1 3/4"
circa 1960s
Flat
marked:751/4 

Geology or prospecting themes on valentine cards are very unusual.  This one includes a Geiger or Geiger-Müller counter.

Cannibals - You are a Splendid Dish (served with a Nice Chianti)

I'm all in a stew My heart is all a twitter ~ Just yearning for you! Be my Valentine or it looks like my goose is cooked!

3 1/4" x 4 3/4" (4 3/4" x 7 3/8" opened)
circa 1940s

French-Fold
by Doubl-Glo

Marked:  P 6702-1
Made in USA

You sure SUIT MY TASTE - My Valentine!

3 5/8" x 2 1/2" 
circa 1940s

Flat

Marked:  Made in USA

In a Situation like this ~ TWO HEADS are better than ONE.  P.S. Let's get together Valentine!

3 1/4" x 4 1/4" (3 1/4" x 7 1/4" opened)
circa 1940s

Modified French-Fold

Marked:  Made in USA

I am in a Stew all about you.

3 1/2" x 4 1/8"
circa 1920s  
signed: CS Byrnes
no publisher's marks