We have 3 NOS Valentine Cards Vintage items.  In the first photo on top is a Teacher valentine.  It measures about 3 3/4" in w x 5" in l.  It shows a tad bit of edge wear on the top and the back of the card has a bit of light staining on it.    On the bottom left  is a heart "To My Valentine".  It has some damage on the top right side of the heart and a fold mark on the center left side.  The back has some light staining.  It measures about 4 1/2" in L x about 4 1/8" across the center top widest point.  Lastly on the bottom right is a single layer (does not open) heart "To my best love".  The back has some light discolorations/wear above the words.  It is marked "printed in Germany" and measures about 3" x 2 7/8".