Poste Monaco Birth of Princess Caroline

POSTE MONACO on 11 May 1957 issued a series of First Day Cover stamps commemorating the birth of Princess Caroline on 23 January 1957. This particular postcard is one of many printed and circulated in 1957, some with definitive stamps of Princess Grace Kelly in various colours and denominations. I happen to like this postcard with the effigy of Princess Grace, its stamps and special postmark. The engraving is minute and extensive. A recess printing method was used.