Discovery help please

[scuda]

Could someone please enlighten me about the meaning of “(by Joseph Pitman, sadler of Stow on the Wold, Gloucestershire)” in this Discovery link.

http://discovery.nationalarchives.gov.uk/details/r/C10503559

scuda

[kiterunner]

I think it means "represented by..."

[Mary from Italy]

That's right.

[scuda]

Thanks both of you.

scuda