The word 'Meilhor' is embossed on the main component.

• Derailleur brands: Pelletier
• Country: France
• Date of introduction: 1938?
• Date of this example: unknown
• Model no.: unknown
• Weight: 212g excluding the pulley cage tension spring
• Maximum cog: at least 23 teeth - a 1937 invoice letter mentions a 13-23T 5 speed system
• Total capacity: at least 10 teeth - a 1937 invoice letter mentions a 13-23T 5 speed system
• Pulley centre to centre: 75mm
• Index compatibility: friction
• Chain width: a 1937 invoice letter mentions 3/32" chain
• Logic: no 'normal' state
• B pivot: none
• P pivot: sprung
• Materials: bronze (?) main body, aluminium flanges on guide pulley aqnd the rest is steel