Field Book 4 5/8" x 7 1/4" by Alvin
Field book covers are extra stiff and a high visibility yellow color completely protected by a waterproof barrier with blind embossing. Pages are white ledger paper specially formulated for maximum archival service ease of erasure and protected by a water-resistant surface sizing. 45/8" x 7¼" page size 80 sheets (160 pages) plus 15 pages of curve tables and practical information. Left page has blue horizontal lines red vertical lines six columns. Right page has 4 x 4 blue lines red vertical center line sixteen columns.