I am looking for 6 of these parts. There is a single F on the coil. No other markings I can find.
Paul from SWISCO responded:
April 20, 2018
Hello! I think we have great replacements for your coil and coil balance shoe. Take a look at our S152-6 coil and our 15-175 coil shoe. Let us know if you agree that these are matches!