Ambassadeur 2500C (A-A25-00C-0-084-M-R) An example of a very rare Decal Model Ambassadeur 2500C produced in Jan 1980 where limited numbers were made based on orders for her Europe and Japan customers. Jan 1980, 1 Revision: This was the first time an Ambassadeur 2500C had her revision changed. The revision was made for the Decal Sideplate and 4-Prongs Straight Starwheel (from #9830 to #12139); although some of these surviving Ambassadeur 2500Cs were still sighted with the 5-Prongs Straigt Starwheel. No one knows for sure why this Decal Model schematic was printed in April 1975 other than the fact that there was intention in the production; which was only materialized about 4 years later. This was the schematic diagram that came with the Ambassadeur 2500C. While the correct Decal Model was printed, 4-Prongs Straight Starwheel and cursive High Speed Decal never existed until mid-1980.