Watch List notes:

San Salvador, El Salvador, provisional 1 real, 1834, SALV, rare, NGC AU details / harshly cleaned, finest and only example in NGC census, ex-O'Brien. KM-18.5. Bold and nearly full strike with lustrous surfaces (perhaps cleaned, but certainly not harshly so, as stated by NGC, in whose census this is the one and only entry for any grade), rare date and denomination (in fact the first we have seen on the market since 2009), this example noted by O'Brien as "finest seen, far superior to KM plate," Jovel-Yonaka Type B ("one example observed"), Villavicencio A2 (but with no trace of overdate claimed by that author). Pedigreed to the John O'Brien Collection (stated on label), with his envelope.

Estimate: $500 - $1000