6 Mexico 1861 Issues

7, USED, AGUASCALIENTES & CANCEL, FRAME LINE AT BOTTOM

7b, USED, AGUASCALIENTES & CANCEL, BIT FADED, W/OUT OVPT.

9, MINT, OG LH, SAN LUIS POTOSI, HUGE MARGINS, WITH MEPSI CERTIFICATE

11, USED, MORELIA AND CANCEL, PRE PRINTING FOLD, WITH MEPSI CERTIFICATE

8c, MINT, OG HR