Classification

In my collection, I have the following structure:

plastics

• celluloid
  
  
• bakelite,
• others: color and form

metals

• argent
• steel
• white/yellow metal
• copper

natural materials

• bone
• horn
• coconut
• ivory
• wood
• leather
• mother of pearl

glass

• black glass
• Bimini
• coloured glass

colored glass

• color
• size

subject

• picture buttons: metal buttons with relief drawing
• bow ties
• flowers
• animals

18th century buttons

designers buttons