Historically, a master craftsman or master tradesman was a member of a guild. The title survives as the highest professional qualification in craft industries.
Craftsman Selling Cases by a Teak Wood Building Ahmedabad, by Edwin Lord Weeks
Master craftsman certificate – Handwerkskammer Dresden – July 7, 1958
A master discusses a vacuum compressor with his apprentice boy and several other craftsmen.
A tradesperson or tradesman/woman is a skilled worker that specialises in a particular trade. Tradesperson (tradesman/woman) usually gain their skills through work experience, on-the-job training, an apprenticeship program or formal education.
Welder
A tradesmen's entrance in London