SWITZERLAND. 1/2 Franc, 1901-B. Bern Mint. PCGS MS-66 Gold Shield. KM-23. Tied with just two others for the finest graded in the PCGS census, this shimmering Gem presents a stunning iridescent outer ring vibrantly ablaze with tinges of burnt sienna, burgundy, golden champagne, and cobalt. Tremendous eye appeal is on full display.