This blotter features the LSD molecule in each four perforated squares. The `B`s` in the name of this blotter stands for blackberries as the LSD molecules look like blackberries in that colour of the sheet. In the bottom right hand corner of the sheet, there is a set of symbols which are the keys to unlocking the molecular structure of this piece of art. Signed and numbered limited edition of 100. Sheet measures 8.25" X 7.5" and is perforated into 900 squares.