Another extremely rare variety, showing the RB assayer punched over RU. Missing from Sedwick (and perhaps unknown to him) and Norweb, this rarity was among the last additions to this collection. The repunching is clear under low magnification, with the upper right serif of the U protruding from the top of the B. Good luster over light yellow gold surfaces, some reflective flash among protected regions of the reverse, single horizontal adjustment mark on the side of the portraits neck. An important opportunity for advanced specialists. From the Eldorado Collection of Colombian and Ecuadorian Coins.
