I found this Greek (as it turns out) postcard at a sale a few months ago. Given the iconography of the egg-shaped frame and bunnies, I assumed the words meant "Happy Easter".
According to Google Tranlate, " "ΧΡΙΣΤΟΣ ANEΣΤH" means "Christ Anesth" which didn't make any sense ("anesth" lead to the the Greek source for the word "anesthesia"). Eventually, it lead to this site which when translated revealed the phrase means "Christ is Risen" which makes more sense, although it seems odd that the card's graphics are particularly secular.
The post card was printed in New York by "Atlantis: Inc. According to this site, the stamp placement mark (AZO with 2 triangles up and 2 triangles down) places it between 1918 and 1930 . Given the clothing style of the mother and daughter, I would place it in the early to mid 1920's.