1939年20美分镍代用样币。巴黎造币厂。齿边,带保险槽。难得款式,钢灰色表面,通体闪光。FRENCH INDO-CHINA. Nickel 20 Cents Essai (Pattern), 1939. Paris Mint. PCGS SPECIMEN-65 Gold Shield.KM-E34; Lec-242. Reeded & grooved (security) edge variety. Another example of this rather difficult type, presenting steely gray surfaces and charming brilliance shimmering throughout.