I have a 1983 "no S" proof Roosevelt dime up for auction on eBay: http://cgi.ebay.com/1983-No-S-Proof...dual?hash=item35a36e0315&_trksid=p3286.c0.m14 For those unfamiliar with the coin, it's a rare error variety that came in very few 1983 proof sets without the usual "S" mintmark. This dime has been certified PF 69 Ultra Cameo by NGC. If anyone has any questions, just let me know. Thanks, Kris