I don't know if its proper to ask for help like this in this forum, but it is one of the last pieces I need to complete my Motto-Cisitalia spider 1100. I've owned this car for 31 years now, and I've never heard it run. But I'm so close!
The french Jaeger rev counter (tachometer or comte tour) I need is like the one in this picture:

It is 125mm (about 5 inches) in diameter, and can be either black face or white face. Zero is at the top at about 1 o'clock, and 70 is at about 11 o'clock. I have an early Ferrari rev counter to trade, if necessary.
Here is a picture of the car it will go into -- my Motto-Cisitalia 1100 spider corsa:

I really appreciate ANY help at all.
Thank you!