Madrid, Spain, gold cob 1 escudo, Charles II, assayer M (vertical) to right, NGC AU 58, finest and only example in NGC census. Cal-825; Fr-229; KM-214. 3.32 grams. Bold CARO- of king's name in legend outside of full assayer M to right of off-center partial shield, nearly full cross, small thick flan with hairline edge-split, lustrous fields.
Estimate: 1500 - 2250 USD