B/X Monster Reference Index
A handy, spiral-bound Index containing essential stats for over 500 creatures. This 28 page Index also contains a set of B/X reference tables making it a great at-the-table reference tool for the GM. Every copy of the Index also comes with 2 sticker sheets. One has a blank Index sheet for adding additional creatures, and the other has an additional Character Attack table.
PDF and spreadsheet versions of the Index are also available via RPGNow.com here: http://www.rpgnow.com/product/165763/B-X-Monster-Reference-Index