recently aquired a bronze or copper breaker plate for a model a, i noticed a few differences in the points location and advance arm also a one piece cast onto the plate points contact mount would appreciate info as to what dates used and if they are good to use.
That would be for a 1928 distributor. Many of the forged plates were copper plated. My 9-27-28 is the same. Yes, they are good to use and I'm still using the points that came in it.
Due to the different location of the points a longer wire pigtail is required on the lower plate. Unfortunately I don't recall the length and no longer have my example. It is however very important to have it right.
thank you for wire length, I'm pretty sure mine is o,k, for length as I previously lengthened it for modern points, knowing the right length I will make sure to check before I do assembley.