[Roadsters] Coil resister

[jim roosevelt]

Please note the photo.I have a 1969 1600 and would like to know;is this a secondary resister (or condenser)on top of my coil.  It is connected to the "+" terminal, same as the ceramic resister.  The dealer said they were not available but gave me a part # 22460-014606.  I am having trouble finding one.  How necessary is it?  Does anyone know what would happen if I unplugged it?  The ceramic resister would still be attached to the "+" terminal.
Thanks,
Mike

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