Postcard, known as Post Card, is the debut album by Mary Hopkin. It was produced by Paul McCartney and released by Apple Records in February 1969 in the UK and in March 1969 in the US. It reached number 3 in the UK and number 28 in the US. It also reached number 26 in Canada. The original US version differed from the UK version by including the hit single "Those Were the Days" instead of a cover of "Someone to Watch Over Me". The album included three songs written by the folk singer Donovan, one of which, "Lord of the Reedy River", was deemed to be one of the album highlights by AllMusic critic Richie Unterberger. Rolling Stone critic John Mendelsohn regarded Hopkin's voice as being well-suited to the Donovan songs, although he considered the songs themselves to be "ponderous and over-long