Mexico. WMK. Perf. 12x12. Ultra and dull blue. Circular and oval cds. NF #187/187b:0,35/01. WMK. VERACRUZ-SUCURSAL cds. Slate dark blue. NF #187a:0,50/01. WMK. Slate dark blue. SILAO cds (Guanajuato State). NF #187a:0,50/01. WMK. Perf.12. Print variety: w