Sector Rule and Ivory Parallel Rulers

Horace Brasswell batch

By Horace Brasswell

• sector rule
• ivory ruler
• draughtsman
• brass hinge
• sector
• parallel ruler
• drafting tool
• engineering drawing
• geometry
• degree scale
• engraved scale
• ivory arm
• hinge pivot
• overhead view
• minimal composition
• bone white
• deep shadow
• polished brass
• still life
• museum
• old master lighting
• warm light
• heritage
• 18th century
• history of engineering
• craftsmanship
• dark background
• marble
• technical drawing
• antique tool

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