This is a beautiful derailleur. Here's why I love it:

• It is a clear derivative of the, very tidy, Gian Robert Competition (or perhaps the Argentine Gian Robert Competicion).
• The lettering on the outer parallelogram plate has a pleasant Art-Deco look.
• And then there are the 'arabesque' flourishes - which are a pure steal from the famous Shimano 600 EX Arabesque.

• Derailleur brands: Gambato
• Country: Argentina
• Date of introduction: 1988?
• Date of this example: unknown
• Model no.: unknown
• Weight: 191g
• Maximum cog: 28 teeth (a guess)
• Total capacity: 26 teeth (another guess)
• Pulley centre to centre: 46mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: top normal
• B pivot: unsprung
• P pivot: sprung
• Materials: aluminium