The making of an Isabey brush

Making a brush involves 30 people and there are many stages to the process.
Combing and mixing hairs
Removal of upside-down hairs
Magnifying glass inspection
Hair selection
Binding the hairs
Measuring
Magnifying glass check and test
Positioning of a natural quill ferrule on wash brushes
Application of brass thread on wash brushes
Gluing
Turning handles
Varnishing handles
Marking
Crimping
Quality control