O166 Mexico Official Issues

O22, USED, WATERMARK EUM, INVERTED OVERPRINT

O18, USED, WATERMARK EUM

O10-22, MINT, OG NH/LH, BLACK PROOF SET, CS/13, (3) SHOWN

O16, MINT, OG LH, WATERMARK 152

O14, MINT, OG LH, WATERMARK 152