Charles II gold 5 Guineas 1684 MS61 PCGS, KM444.1, S-3331. Though this type is available if one is patient, as they do come up about once or twice per year, that fact gets thrown out the window if one pays attention to grade. Never before has an example graded Mint State been offered publicly. Indeed, there is only one other Mint State 1684 5 guineas that has been graded by either NGC or PCGS (an NGC MS61). Even when considering raw examples, it is hard to find any sort of comparable that has crossed the block in at least a decade. To the best of our knowledge, the world record for highest price realized for a 1684 5 guinea was a "Good Very Fine" example sold by Dix-Noonan-Webb in March, 2016 that hammered for 10,000 GBP (about US$14,514 at the time). Obviously, that result isn't even worth mentioning when compared to the present piece. With bright, lustrous surfaces, a strong strike, and minimal haymarking, the eye appeal of this coin is without question. Whoever ends up with this piece when the hammer falls will surely be a happy (and lucky!) collector.
Estimate: 80000-100000 USD