Watch List notes:

MEXICO, Estados Unidos Mexicanos. 1905-pres. AV 50 Gram Bar (38x47mm, 50.14 g). Ciudad de México (Mexico City) mint. B742/ CASA DE MONEDA/ LEY 999 6/ ORO PURO/ 50 GR. stamped in five lines; stamped to upper right, eagle standing left on cactus in lake, wings spread, grasping snake in beak and right talon; all atop laurel and oak wreath / 258 stamped in center. As made.

From the collection of Dr. Lawrence A. Adams. Ex Goldberg 75 (24 September 2013), lot 3673.