Amber at Damask Love calls this "inside out stationary. You can see how to do it on her blog here.
I had lots of fun making a set of these as a gift. Used a variety of dies and matching stamps so that I had 6 different cards.
Stamps: HA "Antique Butterfly"; PTI "Turning a New Leaf"; Technique Tuesday sentiment
Ink: Memento "Tuxedo Black; PTI "Simply Chartreuse"
Other: dies that matched the HA butterfly; TH distress marker "Spun Sugar"; BG enamel dots
Thanks for looking and your kind comments. Betty