unused Block of Four -- an outstanding collection in corner blocks of four, the majority showing the requisition number and includes blocks of 25c. blue (3), $1 red-orange and green chalky paper (2) one with short "R" variety, $2 violet and scarlet chalky paper (4), $5 lilac and scarlet, $5 green and violet (2), $5 yellowish green and violet, $5 chalky paper, $10 bright lilac and blue (2), $10 reddish violet and blue (3) and 1950 dark violet and deep blue; also commemoratives including Silver Wedding $10 (16, light tone spotting on two blocks). A fine and valuable lot for the specialist of this issue