Friedland doorbell - Parts or Whole (Chells Manor SG1)

Looking for a pair of metal bars for a Friedland Type 4 doorbell. These are the bits that the "hammers" hit when the bell push is pressed. (Removed after local kids press and run and now lost!!!!!)
Alternatively I'd be happy to take an old unused one that's been replaced by a video doorbell.

       
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