PERFECT MEASURING TAPE
Perfect Measuring Tape Co. FR-72 Carpenter's Folding Rule Lightweight Composite Construction Ruler (Folding Yard Stick) with Easy-Read Inch Fractions - 6.5ft / 2m
Dover Publications
Ruler and the Round: Classic Problems in Geometric Constructions
JINYEEZY
JINYEEZY Precision Pocket Ruler Woodworking Machinist Engineer Ruler Construction Rulers Inch Ruler Millimeter Ruler Professional Woodworking Ruler (6 inch)
Wooden Books
Ruler & Compass: Practical Geometric Constructions