Stamp collection of Monaco Block number 3B MNH

Block number 3B - Stamp (s) ** - Mint NH - 150x172,5 Sheet bearing block in each corner of the four T.-P. of the same date (number 334A to 337A) with the arms of Monaco brown-lilac, the inscription MONACO RED CROSS 1949 and four diamond with a cross in red (numbert serrated sheet)