I am a fourteenth great grandson of James Hebblethwaite of Sedbergh (born 1431). 
My father left me a few buttons with the family crest on them. He, perhaps jokingly, had said that they were his father's chauffeur's buttons! 

I thought that it would be nice to have the design reproduced, but the minimum size of order was more than enough for my brother, cousin and our children for their blazers etc. So I have a surplus stock of buttons which are available for sale. These are in white metal and are illustrated below. 

For more information, visit Jeremy's site by clicking on the button: