Sentence:  Item, that syx persons of good report, fame, creditt, skill and understanding shal be appoynted by Mr Maiour and th'aldermen to be searchers and sealers of the seid clothes and other comodityes as also to make searche in the howse or howses of all dyers and calendres, <WSD>blacksters</WSD> and sheremen or else wheare according to ye letters patentes for the better fynding owt of defaultes comytted contrarye to the fourme aboveseid, ... 
Meaning of the word marked with <WSD> tags:  One who dyes or colours things black