jpdb beta

strict; hidebound; inflexible; being a stickler for the rules; sticking hard and fast to the rules

triangles (used in mechanical drawing); set square

strict; hidebound; inflexible; being a stickler for the rules; sticking hard and fast to the rules

French curve

French curve

Norma (constellation); the Rule

self-serving logic

T-square (technical drawing instrument)

T-square (technical drawing instrument)

T square