1965 O'Day Mariner Ad
This advertisement features O’Day Mariner #215 and was most likely published in the early part of 1965. #215 was constructed toward the end of 1964, and based on the prices advertised and the October, 1965 advertisement which features Mariner #303, it makes the most sense that this was published in time for the 1965 sailing season.
“If cruising is your desire, check Tempest and Mariner carefully - compare and you’ll be convinced.”