No Edition Remarks. 28 pages. This is an ex-Library book. Blue paper cover. Full title: BIOS Final Report No. 1150 Item No. 22 Vulcanisation Accelerators and Miscellaneous Polymer Auxiliary Products. Expected library inserts, stamps and inscriptions. Binding remains firm. Pages are lightly tanned throughout. Paper cover has mild edgewear with curling to corners Light tanning to spine and edges. Wear marks overall.