Obligatory new Jeffy. I've been on the Canadian kick lately. Although these are often toned, some of these are the most vivid ones I have ever seen. In order of awesomeness (in my opinion)... These are all the RCM specimen commems. Here are some examples of the same coins, showcasing the cameo.
Wow Bob, I don't know if you know how rare it is to find a gem grade 51 with any color, much less color that stupendous. Bravo!
Scored this little diamond in the rough for single digits on eBay. I have no doubts it will come back as a top-pop 67, very possibly with a star attached it. Ridiculous luster.
Picked up some rolls / lots of Kennedys. These guys really stood out in color and/or quality. Recently got this commem as well. This one is interesting. I couldn't pass it up for the price. Still has underlying mint luster with monster toning. Is it market acceptable? Doesn't matter, an old cleaning would void the discussion.
Still an interesting coin looks like something from the 60s makes me want to listen to some Jimi Hendryx and have a smoke