This is a flamboyant little number, with its decorative logo and its rear knuckle sporting a jaunty angle. I also have versions of this design that are unbranded and branded as Centauros.

Mechanically it is partly Shimano (see the cable clamp and adjustment screw placing) and partly not - it has only one sprung pivot.

I think that this is a mid-period example of the genre. It's b-pivot bolt and p-pivot bolt have plainish hex heads, but the adjustment screws and pulley bolts have cheese heads. And then of course there is the Arabesque patterning - a fulsome homage to the unforgettable Shimano 600 EX Arabesque.

• Derailleur brands: Centauros/Cristim
• Country: Brazil
• Date of introduction: 1984?
• Date of this example: unknown
• Model no.: unknown
• Weight: 205g excluding hanger plate
• Maximum cog: 28 teeth?
• Total capacity: 28 teeth?
• Pulley centre to centre: 51mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: top normal
• B pivot: unsprung
• P pivot: sprung
• Materials: steel