• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 4 · Society, Civilization, Culture
• 48 · art
• 48C · the arts; artists
• 48C5 · painting, drawing and the graphic arts
• 48C52 · drawing

48C525 · tools, implements of draughtsman

• 48C5251 · 'camera obscura' (~ tools, implements of draughtsman)
• 48C5253 · convex mirror (~ tools, implements of draughtsman)
• 48C5254 · silhouette-apparatus, 'physionotrace'
• 48C5255 · instruments for perspective drawing