What was advertised in a colonial American newspaper 250 years ago today?

“If any such Piece should break, he will mend the same Gratis.”
For many eighteenth-century artisans, making a living depended in part on establishing a creditable reputation, both for fair dealing and for skilled craftsmanship. Thomas You, a goldsmith in Charleston, devoted most of his advertisement in the South-Carolina Gazette and Country Journal to cultivating and maintaining his reputation, hoping to gain new clients as well as repeat business from previous patrons.
He reminded those who had employed him in the past of their “general Satisfaction” with his work, but he also suggested that this merited passing along “their kind Recommendation to others.” You did not believe that he could rely on word of mouth alone to promote his services to new clients; he apparently supposed that newspaper advertising could provoke word-of-mouth endorsements that would supplement notices in the public prints.
You also pursued another means of cultivating his reputation: he was so confident in the quality of his work that he offered a guarantee. “Any Piece of Plate worked up in his Shop,” the goldsmith pledged, “he will warrant as good as Sterling; and if any such Piece should break, he will mend the same Gratis.” In making this promise to fix defective work for free, You offered a blanket guarantee that covered not only the work done by his own hand but also any tasks undertaken by others who labored in his shop, whether journeymen, apprentices, or enslaved artisans.
You incorporated other appeals into his advertisement, including low prices and punctual service on orders sent by mail, but he saved those for after his endeavors to secure his reputation. He revealed what he thought was most important to his customers. Low prices or quick responses hardly mattered if they accompanied inferior work. The goldsmith first needed to establish the quality of his work, reflected in both his existing reputation and a guarantee on future jobs, in order to convince potential customers of the value of the other appeals he advanced.