Here are some pics of what I think are period correct NOS non-shaker emblems based on the packaging, the brushed chrome, and the paint work on the "SIXPACK". I had a single NOS 440 SIXPACK shaker emblem years ago that had the same features. I was surprised how sloppy the red paint was (especially on the shaker emblem. To me, it looks like they used a hard masking template that dropped over the the raised letters when they applied the red paint. The newer emblems have an almost perfectly applied red paint on just the facing surface of the letters (no evidence of over spray)