Hi
This is what I can find on Tax records for the Apprenticeship,not sure if you already have it.
Henry Sparke and Edm.Pearse Banfill of Clifton Dartmouth harness (Co Devon shipwrights )added above took on apprentices Hen.Hind and John Prout.
The firm was called Henry Sparke and Co.
Tax paid 17.2.1776
The last letter of Hin- could be an elaborate e but to me it looks like d.
Ciderdrinker