1960 -ish Whitman's Chocolate's Sampler - Iconic Yellow Gift Box Magazine Ad

This original magazine ad measures 10 x 13" and features Whitmans Chocolate Sampler Gift Box.  I believe this ad is from the 1957 - 1964-time frame but it is undated, so I don't know for sure.  This is just based on other ads I've been cataloging that would have come from this same time frame.  You can't tell by the box, because those same boxes are still used today.  I just saw one while shopping this afternoon as a matter of fact.