1915 Panama-Pacific International Exposition. Official Medal. Silver. 38 mm. HK-399. Rarity-5. MS-66 (NGC).This is an exceptionally well preserved and attractive example of a perennially popular type. Softly frosted surfaces are brilliant save for reddish-russet outlines to the peripheries and some of the central design elements. A lively and smooth-looking Gem with outstanding visual appeal.Ex Eric P. Newman Numismatic Education Society; Heritages Long Beach Expo Signature Auction of June 2016, lot 98155.