Final answer:
A journeyman is the level of expertise between an apprentice and a master craftsman, representing increased proficiency and the ability to work for wages.
Step-by-step explanation:
A master craftsman holds a prestigious position that typically requires the production of a 'masterpiece' and can be restricted by additional guild requirements.
The level of expertise between an apprentice and a master craftsman is commonly referred to as a journeyman or journeyperson. In historical guild structures, once an individual completed their apprenticeship, they would become a journeyman, which denoted a certain level of proficiency and experience. As a journeyman, the craftsman had the opportunity to work for wages and continue developing their skills. However, to achieve the status of a master craftsman, which was a prestigious position often restricted by guild regulations, one would normally be required to produce a 'masterpiece' that demonstrated mastery of the craft, and fulfill other specific guild requirements, such as family connections within the guild.