Left page has blue horizontal lines and six vertical columns. Right page has 8 x 4 blue lines and a red vertical center line. Appendix of 11 tables of conversions, trigonometric functions, and formulae for solving right angles and curves. Hardback cover, 80 leaves, 160 pages, page size 4 5/8” x 7 1/4”.
Elan Weather-resistant Field Books feature:
• High Visibility Waterproof Covers
• Constructed to withstand the
most rugged handling under all
• High quality water-resistant
50% cotton-content ledger
• Waterproof blue and red inks