Hi Jena - I have reached out to the designer who did this project (she is on maternity leave!), I will let you know soon as I hear back if she can provide hardware specs! Thanks for contacting us :)
Jena - the designer has let me know the client had sourced them herself, she thinks they are from Restoration Hardware.
Thomas and Birch - Kitchens and Living
Thomas and Birch - Kitchens and Living