$5 1988 FRN OVERPRINT ON BACK ERRORS - 3 CONSECUTIVE Serials + Seals on Back Not Face PMG Gem

A bold third printing is found on the back of each of these consecutive and well margined San Francisco $5 FRNs. Had it not been for a small and faint stain confined to the bottom margin on the middle note, each would have easily earned Gem EPQ. An exciting an unusual opportunity to secure a sequential trio of three dramatic mistakes that don't look right from either side!