29 | Spain

Automatically generated translation

★ 156A(18). 1873. 1 real blue, block of eighteen corresponding to types 94-99, 105-110 and 116-121 (the lower row belonging to the original block joined with hallmarks, some minor defect in a block of this size and rarity). MAGNIFICENT AND SPECTACULAR BLOCK, IT IS WITHOUT A DOUBT ONE OF THE LARGEST KNOWN BLOCKS. Certificate EXHIMA. Ex-Alfaro.