Stamp Grading

MNH: Unmounted Mint - Unused with Full Original Gum. No Trace of Hinge
LMM: Lightly Mounted Mint - Unused. Light to Reasonably Mounted with Original Gum
AMM: Average Mounted Mint - Unused with Gum. Will have some defect
VFU: Very Fine Used - Fine stamp. With light postmark
FU: Fine Used - Fine stamp. Good moderate postmark
GU: Good Used - Sound Stamp with heavier postmark
AU: Average Used - Stamp with slight defect, such as pulled perfs or slight thin
FDC: First Day Cover - Stamp(s) used on an envelope on the first day of issue.