Fr. 275. 1899 $5 Silver Certificate. PMG Very Fine 25. Net. Previously Mounted. Inverted Back Error.This is one of only three known for this Friedberg number, and the first we have ever offered. The last Fr. 275 example to sell was in a 2017 auction where it was graded PMG Very Fine 30 "Rust", for just over $4200. PMG Comments "Previously Mounted". None the less, a rare and desirable error which should easily achieve our high estimate. pp