This amazing 1882 Valentine published by Prang and Co. Boston has a photo of a lovely young man on the front with the caption "TO THE BOY OF BOYS" and on the back Flowers decoration and "ST. VALENTINE" It is adorned with a feathery ribbon sandwiched between the two cards.
It can be found at http://www.etsy.com/listing/74905763/antique-1882-valentine-postcard-boy-of
Here are a few more of the lovely antique Valentine cards in my shop:
Also there is a wonderful Twitter Tree going on right now today if you would like to get some more exposure for your own shop. If you are interested in participating stop at http://christiecottage.blogspot.com/2012/01/mostly-business-monday-twitter-tree_30.html
I know Christie would be glad to have you!