Ambassadeur 2500C (A-A25-00C-0-061-M-C) A rare example of an Ambasssdaeur 2500C which was produced in October 1977. September 1977 was the month when her smaller brother, the Ambassdeur 1500C was produced. Within the four months, all Ambassadeur 2500C’s production ceased to focused on the production of the Ambassadeur 1500C. The number of Ambassdeur 2500C produced within these four months was small and is considered rare. Oct 1977, Nil Revision: A reel foot with unique faint welded marks believed to be the beginning of the a new technology adopted. An undated schematic diagram from Garcia indicating the transition between Double Twin Knob Handle and Counter Balance Handle. While Counter Balance Handle was used exclusively on Ambassadeur 2500C from November 1976 onwards, new schematic diagram indicating the change was never printed.