1921-23 Commemorative Specimen NHM Blocks of 4

Code: B03088

Bulgaria: 1921-23 commemorative set of 13 in marginal unmounted mint blocks of four, each stamp with four punched small holes in a diamond pattern. Apparently only one pane of 100 of each specimen exist. SG 226/238, Sc. 158/170


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SG 226/238, Sc. 158/170