47c5 is the prefix for a Manhattan; serial numbers start with "1001" as the last 4 digits. Members of the KFOCI get KFOCI HANDBOOK when they join. This CD has a lot of information on the 1947 Manhattans including info on colors, trims and equipment. Directional signals were standard on ALL 1947 Frazers (standard or Manhattan). If you post some pictures we can help on identification of lights and other features you have a question about.