This part has been confirmed as NLA for some time. Rather puzzling is the fact that two reputable Ferrari parts specialists couldn’t even give me a part number for it. A search of table 118 shows the part in the drawing, but provides no reference to it. Does anyone know any of the following: 1. The part number? 2. Where to purchase one new? 3. Where to purchase one used? 4. Where to refurbish one? 5. Or if a rheostat from another model will work? For example, the part clearly shows in table 121 for a 512TR, part number 131467. Or will a period 328 or Mondial one work? This is for a US spec ‘86 TR where the dash light rheostat is located in the middle tunnel down low next to the odometer.